15PCS Countersink Drill Bit Set with Adjustable Depth Stop Collar for Wood

15PCS Countersink Drill Bit Set with Adjustable Depth Stop Collar for Wood

• 15-Piece Set: This upgraded 15‑piece set includes 5PCS two‑flute TCT alloy tapered countersink bits in practical sizes: 1/8", 9/64", 5/32" with 3/8” 82° counter‑bore, and 11/64", 3/16" with 1/2" 82° counter bore. **Comes with 10PCS replaceable M2 HSS center pilot drill bits, 2 pieces for each size**, for long‑term use. The standard 1/4” hex shank ensures firm clamping and universal compatibility with most electric drills and impact drivers.
• Depth Adjustable : Both pilot drill and counterbore depth are adjustable by adjusting the depth stop and drill bit with the wrench included, to achieve accurate drilling. The added plastics collar can reduce surface marring effectively.
• Sharp And Sturdy: The TCT (Tungsten Carbide Tipped) pilot countersink drill bits with spiral chip flute, ensure rapid cutting; Sharp steel alloy cutting edges create smooth countersink and counterbore holes, ideal for screws fitting 82-degree imperial (U.S.) standards
• Widely Used: Working with natural woods, chipboard, man-made boards, plywood, MDF, decking,drywall,and various plastic boards. For best results and smooth edges, operate the countersink at slow speeds, approximately 200 RPM.
• Compact And Convenient: All 15 countersink drill bits, two additional plastics collar, two screw caps and an Allen wrench are Stored in a small carrying case, only 8.82ounces/250g weight，so it's very easy to carry everywhere. Hanging hole design allows you to hang it freely.