3-Piece Countersink Chamfer Drill Bit Set With 5-Flute 90 Degree Bits, One Quarter Inch Hex Shank, Includes 12mm 16mm 19mm Sizes For Clean Counterbores And Fast Chip Removal In Wood And Metal DIY Projects

3-Piece Countersink Drill Bit Set with 5-Flute 90° Bits
✔️ 12mm, 16mm, 19mm sizes; 1/4 in hex shank; three bits

This 3-piece countersink chamfer drill bit set is built for sinking 90° counterbores in wood and soft metals, delivering clean chamfers and fast chip removal for DIY projects, cabinetry, and light fabrication.

✅ Size: 12mm/16mm/19mm(≈1/2'' 5/8'' 3/4''); 1inch=25.4mm
✅ Heat Treatment: High-frequency quenching for hardness
✅ Unique Design: 5-flute chips-removal for clean holes
✅ Widely Used: Sinking 90-degree holes in wood and soft metal
✅ Note: Do not use on high-hardness metals

💡 What is a countersink drill bit set used for?

A handy overview of typical uses and benefits for woodworking and light metal tasks.

- Creates flush screw heads in wood and soft metals
- Deburrs and chamfers edges for a clean finish
- 1/4 in hex shank enables quick bit changes
- Includes 12mm, 16mm, 19mm sizes for common screws