CASOMAN 15 PCS Countersink Drill Bit Set, Tapered Drill Bits for Woodworking, Quick-Change Wood DrillBit Kit with Storage Box

Made from industrial-grade high-speed steel, with a nitrided surface treatment, it offers excellent toughness and wear resistance. Compared to common carbon steel bits on the market, it boasts 2X longer service life.

Set include: 7pcs Tapered drill bits: #4mm (7/64"), #6mm (9/64"), #8mm (11/64"), #10mm (3/16"), #12mm (7/32"); 2pcs Replacement drills:#4mm, #6mm; 2pcs Wood plug cutters: 9.5mm, 12.7mm; 1pc Allen key; 2pcs Depth stop rings: 9.5mm, 12.7mm; 2pcs Phillips screwdriver bits: PH1, PH2; 1pc Extension bit shaft.

Precise Depth Adjustment‌ – This countersink drill bit set features an adjustable depth stop ring, allowing for accurate control of pilot hole depth, ensuring consistent and accurate countersinking for a truly professional finish.

High-Efficiency Drilling-Our drill bits feature razor-sharp cutters and an 82° countersink angle to ensure smooth, fast drilling in both hardwoods and softwoods. The tapered pilot bit creates quick, clean guide holes for tight screw fitment.

Meets or exceeds DIN performance standards. It comes with 1 year quality warranty.