About This

10-IN-1 METAL COUNTERSINK SYSTEM: 1main body, 4 drii bits (HSS), 4 reversible countersink heads (HSS) (8 sizes) + 1 countersink bit (HSS), 1 depth stop set, 1 chamfer tool,1phillips bit. 9 precision hole options, breakthrough for hardened steel/stainless alloys, outperforming wood-only competitors.
±0.5MM DEPTH CONTROL: Hex Key-Accurated Stop Prevents Over-Drilling & Burrs Integrated depth-stop with included hex key achieves ±0.5mm industrial-grade precision; free-spinning plastic collar protects surfaces, ensuring flush screw heads in one operation.
9-SIZE QUICK-CHANGE EFFICIENCY: 50% Faster Than Standard Bits Reversible heads flip for instant size switching (8-10*2.8mm/8-10*3mm/8-10*3.2mm/8-10*3.5mm/14mm*90°); spiral design clears wood/metal chips 3x faster, quickly switch to the phillips bit and tighten the screwseliminating bit changes and boosting productivity.
CHAMFER TOOL INTEGRATION: 45° Deburring Edges in One Pass Vertical pilot syncs with chamfer tool for 45° edge-smoothing; removes sharp burrs on metal/wood instantly, saving 30% polishing time vs. standalone tools
ORTABILITY CASE: 250g lightweight case organizes all bits + tools; backed by lifetime breakage replacement + 90-day guarantee.