The Drill Bit Is Just as Important as the Drill
Walk into any Powermark branch and you will see the same conversation happen regularly. A customer brings in a Bosch GSB 13 RE — a perfectly good professional corded drill — and complains that it cannot drill through the concrete wall in their Manila apartment or their Laguna house. The drill is running. It is spinning. It is making noise. But it is barely scratching the surface.
In almost every case, the problem is not the drill. It is the drill bit.
Using the wrong drill bit for the material you are drilling is the most common and most frustrating mistake Filipino homeowners, contractors, and tradespeople make. A standard HSS twist bit will spin harmlessly on concrete without making progress. A masonry bit pressed against ceramic tile will crack it before it drills through. An SDS-plus bit jammed into a standard keyless chuck will wobble dangerously and damage both the chuck and the bit. The wrong bit does not just fail to drill — it can damage your material, damage your drill, and in some cases create a genuine safety risk.
This guide covers every drill bit type available in the Philippine market — sold at Powermark branches in Manila, Laguna, Lipa Batangas, and Sto. Tomas Batangas — with specific guidance for the materials most commonly encountered in Philippine construction: concrete, hollow block, ceramic and porcelain tile, Philippine hardwoods like narra and mahogany, mild steel, glass, and more.
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Quick Reference: Material → Correct Drill Bit Concrete / Hollow Block: → Carbide-tip masonry bit (with hammer/impact mode ON) Ceramic Tile: → Diamond-tip tile bit or carbide spear-point tile bit (hammer mode OFF) Porcelain Tile: → Diamond core tile bit, slow speed (hammer mode OFF) Plywood / Softwood: → HSS twist bit or brad-point wood bit Philippine Hardwood (Narra, Mahogany, Molave): → Sharp brad-point or auger bit, slow speed Mild Steel / Rebar: → HSS (High Speed Steel) twist bit, slow speed with cutting oil Stainless Steel: → Cobalt (Co) HSS bit, very slow speed with cutting oil Glass / Mirror: → Diamond-tip glass bit or carbide spear-point, slow speed + water cooling Plastic / PVC: → HSS twist bit or brad-point, slow speed Thick concrete — large holes: → SDS-plus bit in rotary hammer (GBH series), never in standard drill Multi-material (wall with mixed layers): → Bosch CYL-9 or Makita Multi-Construction bit |
The Complete Drill Bit Reference: Every Type Explained
Before going into material-specific recommendations, understanding the main drill bit families and what differentiates them is the foundation of correct bit selection.
1. Masonry Bits — The Most Used Bit in the Philippines
Masonry bits have a carbide (tungsten carbide) tip brazed onto a steel body. The carbide tip is extremely hard and brittle — hard enough to abrade concrete, hollow block, and masonry, brittle enough to chip if dropped on a hard surface. They are designed for use with the hammer or impact function of a drill — the hammering action is what breaks up the concrete particles while the rotation clears the debris. Without hammer mode, a masonry bit can still drill concrete but extremely slowly.
Available sizes in the Philippines: 4mm through 32mm at Powermark branches. Most common sizes for wall anchors in Philippine construction: 6mm (for Fischer S6 or equivalent anchor bolts), 8mm, 10mm, and 12mm. For SDS-plus rotary hammers, SDS-plus masonry bits in the same diameters are used — these have a different shank that locks into the SDS chuck.
Key rule: ALWAYS use masonry bits with hammer mode ON when drilling concrete or hollow block. Without hammer mode, you are grinding rather than drilling — the bit wears rapidly and makes very slow progress.
2. HSS Twist Bits — The General-Purpose Metal and Wood Bit
HSS (High Speed Steel) twist bits are the classic silver-colored drill bits that most Filipinos picture when they think of a 'drill bit.' They are designed for drilling through metal, wood, and plastic at moderate speeds. The spiral flutes that run the length of the bit clear chips from the hole as the bit rotates.
What HSS bits ARE for: Mild steel, aluminum, brass, copper, plywood, MDF, softwood, hardwood (with caveats), plastic, and PVC. HSS bits handle most metal drilling tasks encountered in Philippine construction and fabrication.
What HSS bits are NOT for: Concrete, hollow block, or ceramic tile. Using an HSS bit on concrete will dull the bit within seconds and make no meaningful progress on the concrete. The steel is simply not hard enough to abrade masonry materials.
3. Brad-Point Wood Bits — Precision Wood Drilling
Brad-point bits (also called lip-and-spur bits) have a sharp center point that locates the drill position precisely before the outer cutting edges begin, and two spurs that score the wood fiber cleanly before the main cut. The result is a clean-edged hole with minimal tearout on visible wood surfaces — important for furniture making and finish carpentry.
Best for: Philippine hardwoods like narra, mahogany, molave, and yakal; plywood for furniture making; shelf board; and any visible wood surface where hole edge quality matters. The brad-point's center locating feature also prevents the bit from 'walking' when starting a hole — a common problem with HSS twist bits on smooth hardwood surfaces.
4. Diamond Tile Bits — The Right Bit for Ceramic and Porcelain
Diamond drill bits for tile use industrial diamonds bonded to a steel core as the cutting medium. The diamonds abrade the tile material rather than cutting it in the conventional sense — the bit wears through the tile surface by controlled abrasion rather than by cutting. This is the safest bit for drilling through glazed ceramic and especially porcelain tile without cracking.
Critical rule for tile drilling: ALWAYS turn hammer mode OFF when drilling through tile. The percussive action of hammer mode will shatter the tile before the bit can drill through it. Slow, steady rotary drilling with light pressure and water cooling (a small amount of water on the drill site reduces heat and dust) produces the cleanest hole with the least risk of cracking.
5. SDS-Plus and SDS-Max Bits — For Rotary Hammers Only
SDS-plus and SDS-max bits have a specially shaped shank with slots that lock into the SDS chuck of a rotary hammer — allowing the bit to slide in and out in a controlled hammer stroke while being locked rotationally. These bits MUST ONLY be used in SDS rotary hammers (Bosch GBH series) — never in a standard keyless chuck drill.
Why you cannot use SDS bits in a regular drill: The SDS shank is designed to float and hammer — if forced into a standard keyless chuck, the bit will not be properly secured. The hammering action during use will loosen the chuck, damage the bit shank, and create a dangerous situation where the bit can be ejected from the tool during operation.
Available at Powermark: Bosch SDS-plus bits in 4mm through 40mm, including the Bosch SDS-plus-5X series (for standard concrete drilling) and the Bosch SDS-plus-7X series (for heavily reinforced concrete). Standard SDS-plus bits work in any brand's SDS-plus rotary hammer — Bosch, Makita, DeWalt, or otherwise.
6. Multi-Construction Bits — The Versatile All-Purpose Solution
Multi-construction bits (such as the Bosch CYL-9 and Makita Multi-Construction series) are designed to drill through multiple material types without changing the bit. They use a specialized tip geometry that handles concrete, brick, wood, and some plastics in the same drilling session — useful when you are drilling into a wall that may have layers of render, hollow block, and possibly timber framing.
Best application: Philippine homeowners drilling anchor holes in walls where the exact composition is uncertain (painted concrete? render over hollow block? older mixed construction?). The multi-construction bit handles the uncertainty without requiring bit changes. Available at all Powermark branches in sizes 5mm through 12mm — covering all common wall anchor sizes.
7. Spade Bits and Auger Bits — Large Diameter Wood Holes
Spade bits (also called paddle bits) and auger bits are designed for drilling large-diameter holes through timber — typically 16mm through 38mm. They are flat, paddle-shaped bits that cut quickly through wood but leave a rougher hole edge than brad-point bits. They are the correct tool when a Filipino electrician or plumber needs to pass cable or pipe through a timber frame, floor joist, or wooden partition.
8. Hole Saw Bits — Large Diameter Holes in Multiple Materials
Hole saws cut large-diameter holes (typically 20mm through 152mm or larger) by cutting only the perimeter of the hole rather than drilling out the full area. The result is a clean circular hole with the core material (called the 'slug') left intact in the center. Hole saws for wood and thin steel use bi-metal HSS teeth. Diamond-tipped hole saws cut through ceramic tile, porcelain, marble, and granite — the material used for many Philippine bathroom and kitchen floor and wall surfaces.
Material-by-Material Guide: Philippine Construction Applications
These are the materials Filipino contractors, tradespeople, and homeowners drill most frequently — and the specific bit choices that work correctly for each one.
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🏗️ Concrete and Reinforced Concrete ✅ Use These Bits:
💡 Powermark Tip: Drill at medium-to-high speed with hammer mode ON. For dense concrete (slabs, columns, beams), use a rotary hammer (GBH 2-28 D) with SDS-plus bits rather than a standard drill with masonry bits — the difference in speed and bit longevity is dramatic. Apply moderate, steady pressure — do not force the drill. If the bit stops progressing, pull it out to clear concrete dust from the flutes, then continue. ❌ Don't Do This: Never use hammer mode with tile bits or wood bits — only with masonry bits in concrete. Never use HSS twist bits in concrete — they will dull immediately and make no progress. |
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🧱 Hollow Block (Concrete Masonry Unit) ✅ Use These Bits:
💡 Powermark Tip: Hollow block (the standard wall material in Philippine residential and commercial construction) is easier to drill than solid concrete — less density, more air space. Use hammer mode at moderate speed. The most important thing is bit sharpness — a dull masonry bit drags and generates heat in hollow block without progressing efficiently. Replace bits showing signs of wear (rounded carbide tip, reduced cutting rate) before they cause overheating and motor strain. ❌ Don't Do This: Do not use too much pressure — hollow block can fracture around the hole if the bit binds. Steady, moderate pressure produces cleaner anchor holes than aggressive forcing. |
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🚿 Ceramic Tile ✅ Use These Bits:
💡 Powermark Tip: CRITICAL: Turn hammer mode OFF completely. Use the slowest speed your drill offers. Apply very light pressure — let the bit do the work rather than forcing it. For the first few seconds, hold the bit nearly horizontal to create a small notch that prevents skating across the glaze. Water cooling (a few drops on the drill site, or a small clay dam filled with water) reduces heat and dramatically extends bit life. Tape an X over the drill site on the tile surface to prevent the bit from skating when starting. ❌ Don't Do This: NEVER use hammer mode on tile. Even one hammer blow is enough to crack ceramic tile. Never use a masonry bit on tile — the tip geometry is wrong and will fracture the tile. Never press hard — the glaze shatters under side load, not the abrasive cutting load the bit is designed for. |
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🪴 Porcelain Tile ✅ Use These Bits:
💡 Powermark Tip: Porcelain is fired at higher temperatures than ceramic and is much denser and harder. Drill at the slowest possible speed with a diamond bit, very light pressure, and continuous water cooling. Filipino homeowners installing shower fixtures in porcelain-tiled bathrooms should take their time — a cracked large-format porcelain tile can cost ₱1,500–₱5,000 to replace. Start at an angle to create a notch, then move to vertical. Keep the drill area wet throughout. ❌ Don't Do This: Never use a carbide spear-point tile bit on porcelain — the material is too hard and the bit will skate or chip the porcelain surface. Never use hammer mode. Never use a masonry bit. |
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🪵 Plywood and Softwood ✅ Use These Bits:
💡 Powermark Tip: Use rotation mode (NO hammer mode) for all wood drilling. Medium-to-high speed produces cleaner cuts than slow speed in wood. For visible surfaces on furniture panels, put tape over the drill entry point — the tape's adhesive backing supports the wood fiber during drilling and significantly reduces tearout on the show face. When drilling through plywood, back up the exit side with scrap wood to prevent blowout where the bit exits. ❌ Don't Do This: Never use masonry bits in wood — they will drill the hole but leave a ragged, burnt edge as the carbide tip drags through wood fiber rather than cutting it cleanly. Never use hammer mode in wood — it tears rather than cuts. |
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🌳 Philippine Hardwoods (Narra, Mahogany, Molave, Yakal) ✅ Use These Bits:
💡 Powermark Tip: Philippine hardwoods are significantly denser than the softwoods (pine, fir) that most global tool guides are written for. Use SLOW speed with sharp bits and moderate pressure. High speed in dense hardwood burns the bit and the wood surface. For narra and molave specifically — some of the densest Philippine hardwoods — pre-drill a small pilot hole (2mm–3mm) before your final hole to reduce walking and splitting risk on dense grain. Keep bits sharp — dull bits in hardwood are a frequent cause of split stock and burnt holes. ❌ Don't Do This: Never use high speed in dense hardwood — heat destroys the bit's hardness and burns the wood. Never use hammer mode. If a bit wanders on a smooth hardwood surface, start with a center punch mark or a small awl hole to locate the bit before drilling. |
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⚙️ Mild Steel and Rebar ✅ Use These Bits:
💡 Powermark Tip: Drill at SLOW speed in steel — high speed generates heat that kills the bit's cutting edge very quickly. Apply cutting oil or even a drop of light machine oil to the drill site to reduce friction and heat. Use firm, steady pressure and let the bit feed at its own rate rather than forcing. When the bit breaks through the far side of the steel, reduce pressure immediately to prevent the bit from grabbing and spinning the workpiece. Clamp the workpiece — never hold steel by hand while drilling. ❌ Don't Do This: Never drill steel at high speed — the bit will overheat within seconds and lose its temper (hardness), becoming permanently dull. Never drill steel without clamping the workpiece — when the bit breaks through, it can grab the steel and cause a serious hand injury. Never use masonry bits on steel. |
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🪟 Glass and Mirror ✅ Use These Bits:
💡 Powermark Tip: Glass drilling requires very slow speed, very light pressure, and constant water cooling. A small ring of plumber's putty around the drill site filled with water creates an effective water reservoir that keeps the bit cool and reduces dust. Mark the drill site with a felt-tip pen. Start by holding the bit at an angle to create a small notch, then move to vertical. Filipino homeowners installing frameless glass shower screens or mirror fixtures should practice on scrap glass first — the technique takes patience. ❌ Don't Do This: Never use a masonry bit on glass — it will chip and crack rather than drill. Never use high speed — heat causes thermal shock that cracks glass. Never apply pressure — let the weight of the drill provide all the pressure needed. |
Drill Bit Size Guide: Which Size for Which Anchor in the Philippines
The most common reason Filipino homeowners drill into concrete walls is to install wall anchors for mounting brackets, shelving, curtain rods, and fixtures. Using the correct anchor size and the correct drill bit size together is essential for a secure installation.
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Anchor / Bolt Size |
Drill Bit Size |
Drill Bit Type |
Max Load (Approx.) |
Common Philippine Use |
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Fischer S6 / M6 anchor |
6mm masonry bit |
Carbide-tip masonry |
50–80 kg (single anchor) |
Curtain rods, light shelves, small brackets |
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Fischer S8 / M8 anchor |
8mm masonry bit |
Carbide-tip masonry |
100–150 kg (single) |
Medium shelves, TV brackets up to 32" |
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Fischer S10 / M10 anchor |
10mm masonry bit |
Carbide-tip masonry |
200–300 kg (single) |
Large TV brackets (43"+), heavy shelving |
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Fischer S12 / M12 anchor |
12mm masonry bit |
Carbide-tip masonry |
400+ kg (single) |
Kitchen cabinet wall rail, heavy wall-mount fixtures |
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Chemical anchor (large) |
16mm+ SDS-plus bit |
SDS-plus in rotary hammer |
Very high — structural |
Gate posts, heavy structural brackets |
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Conduit clip (electrician) |
6mm masonry bit |
Carbide-tip masonry |
Light — clamp load only |
Electrical conduit securing to concrete walls |
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Rawlbolt M8–M12 |
Same as bolt diameter |
Carbide-tip masonry |
High — expansion anchor |
HVAC brackets, machinery anchoring |
Buying Drill Bits in the Philippines: What to Look For
Genuine Bosch and Makita Bits vs No-Name Alternatives
Drill bits are consumables — they wear out and need replacement. The temptation to buy the cheapest available bits is understandable, but the false economy of cheap drill bits is well-documented among Filipino tradespeople. A pack of five no-name masonry bits at ₱50 that dulls after drilling three holes in Philippine hollow block costs more per hole drilled than a single ₱180 Bosch Professional masonry bit that handles twenty holes before dulling.
The difference between genuine Bosch and Makita bits versus no-name alternatives: Professional-grade bits use better-quality carbide compounds (for masonry bits) and precisely heat-treated high-speed steel (for HSS bits) that maintain their cutting edge significantly longer. They also have more precisely ground geometries that produce cleaner holes and transfer less load to the drill motor during operation.
Powermark stocks the full Bosch Professional drill bit accessory range — including the CYL-9 Multi-Construction series, SDS-plus-5X and SDS-plus-7X masonry bits, Expert range tile and glass bits, and HSS twist bit sets — at all five branches and at powermark.shop.
The Starter Bit Kit Every Filipino Professional Should Own
Rather than buying bits one at a time as you need them, building a complete starter kit prevents the frustration of being mid-job without the right bit. Here is the Powermark-recommended starter kit for Filipino tradespeople and serious homeowners:
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Bosch CYL-9 Multi-Construction set (5-piece): 5mm, 6mm, 8mm, 10mm, 12mm. Covers all standard wall anchor sizes in Philippine concrete and hollow block. One set handles 80% of all wall drilling tasks.
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HSS twist bit set (metal): 2mm through 10mm. Covers pilot holes, screw clearance holes, and metal drilling. Essential for any fabrication or electrical work.
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Brad-point wood bit set: 6mm through 20mm. For clean-edged holes in visible wood surfaces, furniture assembly, and cabinetry.
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Diamond tile drill bit set: 6mm, 8mm, 10mm. For bathroom and kitchen fixture installation through ceramic tile. Critical that these be diamond-tipped — carbide spear bits work but risk more tile cracking.
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SDS-plus masonry bit set (if you own a rotary hammer): 6mm, 8mm, 10mm, 12mm, 16mm. These are the bits for your GBH 2-28 D or similar rotary hammer. Standard masonry bits will not fit an SDS-plus chuck.
Estimated total cost for the complete kit: ₱3,500–₱6,000 using Bosch Professional accessories. Available at all Powermark branches.
When to Replace Drill Bits
Drill bits are consumables. Using a dull bit is not just inefficient — it puts additional load on the drill motor (accelerating motor wear), generates excess heat (which can damage the drill and the workpiece), and produces poor-quality holes. Replace bits when you notice any of these signs:
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Masonry bits: When the carbide tip looks rounded or chipped under close inspection, or when drilling speed in hollow block has noticeably slowed compared to when the bit was new.
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HSS bits: When the bit feels hot after a short drilling session, when it squeals rather than cuts cleanly, or when holes in metal show a rough, torn edge rather than a clean cylindrical wall.
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Tile bits: After 15–20 holes in ceramic, or after 5–8 holes in porcelain (porcelain wears diamond bits faster). When drilling time per hole increases significantly, the abrasive surface is worn.
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Wood bits: When holes have significantly torn edges or burnt surfaces. Sharp brad-point bits can be re-sharpened with a small diamond file — a useful skill for Filipino carpenters who use these bits heavily.
Philippines-Specific Drill Bit Tips from the Powermark Team
Drilling in Old Manila Concrete and Heritage Buildings
Many renovation projects in Manila, particularly in the older barangays of Quiapo, Binondo, Sampaloc, and the heritage districts, involve concrete that was poured decades ago — sometimes 60–80 years old. This old concrete is often significantly harder than modern hollow block and can contain aggregate types not found in contemporary construction. For these applications:
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Use an SDS-plus rotary hammer (Bosch GBH 2-28 D) rather than a standard impact drill — the pneumatic hammer action handles old dense concrete far better than a standard drill's electric impact mechanism.
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Go one size up in SDS bit quality — use the Bosch Expert or SDS-plus-7X bits rather than the standard SDS-plus-5X when dealing with old Manila concrete.
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Expect slower progress and more frequent bit changes than in modern hollow block construction. Budget for more bits on heritage renovation projects.
Drilling Through Philippine Hollow Block: The Right Technique
Standard Philippine hollow block (Concrete Masonry Units or CMUs) has two layers of dense concrete face shell surrounding hollow cores filled with air. When drilling through a wall for cable or pipe penetrations, the bit passes through: face shell → hollow core → face shell on the far side. The hollow core causes the bit to lose resistance suddenly, which can cause the drill to lurch forward. Maintain control by:
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Reducing forward pressure just before you estimate the bit will reach the hollow core.
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Using a depth stop if available, or marking the desired depth on the bit with tape.
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For through-wall penetrations: drill slowly through the far face shell to prevent blowout on the exit side.
Heat Management in Philippine Summer
Drilling — particularly in concrete with a standard corded drill — generates heat in both the bit and the drill motor. In Philippine summer (March–May) when ambient temperatures exceed 35°C on construction sites and in homes without air conditioning, this heat builds faster and dissipates slower than in the temperate climates most tool guides assume.
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For sustained concrete drilling sessions: pause every 10–15 minutes and allow the drill and bit to cool. Touching the bit after a drilling session — carefully, as it may be hot — tells you how much heat has accumulated.
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Never plunge a hot masonry bit into water to cool it quickly. The thermal shock can crack the carbide tip. Allow bits to cool in open air.
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For drilling multiple anchor holes in sequence (common when installing a TV bracket or shelving system): let the bit cool between holes. This extends bit life significantly in Philippine heat.
Frequently Asked Questions: Drill Bits in the Philippines
Q: What drill bit do I use for concrete walls in the Philippines?
Use a carbide-tipped masonry drill bit with the hammer (impact) mode ON your drill. For standard wall anchor installation (6mm, 8mm, 10mm holes), a standard masonry bit in a Bosch GSB 13 RE or similar impact drill works well. For larger holes (14mm+) or very dense concrete, use an SDS-plus masonry bit in a Bosch GBH 2-28 D rotary hammer — the SDS system delivers far more efficient concrete drilling at those sizes.
Q: What drill bit do I use for ceramic tiles in the Philippines without cracking them?
Use a diamond-tipped tile drill bit or carbide spear-point tile bit. The most critical rule: TURN HAMMER MODE OFF completely. Drill at the slowest speed your drill offers, apply very light pressure, and keep the bit cool with water. A small X of masking tape over the drill site on the tile glaze helps prevent the bit from skating when starting. The combination of wrong bit type AND hammer mode ON causes the vast majority of cracked tiles during Philippine bathroom and kitchen renovation.
Q: Can I use the same drill bit for concrete and wood?
No. Masonry bits (carbide-tip) are designed for concrete and hollow block with hammer mode — they will drill wood but leave a rough, burnt hole. Wood bits (HSS, brad-point) are designed for wood — they will not effectively penetrate concrete. The Bosch CYL-9 Multi-Construction bit is an exception designed to handle multiple materials, but even this is a compromise for general use rather than an optimal choice for any single material. The right bit for concrete is a masonry bit; the right bit for wood is an HSS or brad-point bit.
Q: What size drill bit do I need for a Fischer S6 wall anchor?
A Fischer S6 anchor requires a 6mm masonry drill bit. For S8 anchors: 8mm bit. For S10: 10mm bit. The anchor size and the drill bit diameter should always match exactly. Drilling too small means the anchor will not fit. Drilling too large means the anchor will not grip the concrete securely and may pull out under load.
Q: Where can I buy genuine Bosch drill bits in Laguna and Batangas?
Powermark carries the full Bosch Professional drill bit accessory range — masonry bits, SDS-plus bits, HSS bits, tile bits, and multi-construction bits — at the Laguna branch (National Highway, Platero, Biñan, 0917 548 2029), the Lipa Batangas branch (J.P. Laurel Hwy, Marawoy, Lipa City), and the Sto. Tomas Batangas branch (C-Square, JP Laurel Hwy, Brgy. San Roque). You can also order online at powermark.shop with free delivery nationwide.
Q: Why won't my drill bit go through the wall in my Philippine condo?
The most common causes: (1) You are using an HSS twist bit instead of a masonry bit — HSS bits cannot drill concrete effectively. (2) Your masonry bit is dull — replace it. (3) You have the hammer mode OFF — for concrete and hollow block, hammer mode must be ON. (4) You are encountering steel rebar inside a structural concrete wall — masonry bits cannot drill through rebar; you need a specialized rebar-cutting bit or a different approach. (5) The wall is old, very dense concrete — you may need to upgrade from a standard impact drill to a proper rotary hammer (GBH 2-28 D).
Conclusion: The Right Drill Bit Makes Every Job Easier
The drill bit is a component that most Filipino tool buyers treat as an afterthought — something grabbed off the peg at the hardware store without much consideration. The result, as anyone who has spent twenty minutes trying to drill a 6mm hole through old Manila concrete with an HSS twist bit knows firsthand, is frustration, wasted time, and sometimes a damaged material or a damaged drill.
The correct bit selection takes 30 seconds of thought and costs very little relative to the tools it protects and the time it saves. Masonry bit for concrete, always with hammer mode on. Diamond tile bit for ceramic, always with hammer mode off. Brad-point for visible hardwood surfaces. SDS-plus for the rotary hammer. Multi-construction when you are not sure what is in the wall.
Powermark stocks the complete Bosch Professional drill bit accessory range across all five branches — Manila, EDSA, Laguna, Lipa Batangas, and Sto. Tomas Batangas. Our team can match you to the right bit for your specific drilling application on the spot, or you can order everything you need at powermark.shop with free nationwide shipping and Cash on Delivery.
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