1.Drilling chamfering, once resolved.
2.High-speed steel material, good toughness, high strength.
3.Suitable for drilling in the hard wood and wood floor, machine screw for wood screw.
4.Standard hex shank is quick change compatible.
5.Drill and countersink for wood screws without changing bits.
6.Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrew.
[Drill Material]: High-speed steel 4241
[Chamfering Material]: 45 # steel
[Shank]: Hex Shank 6.35mm
[Specification]:
Type 6: 2.5mm drill bit
Type 10: 3.15mm drill bit
Type 13: 3.65mm drill bit
Type 16: 4.5mm drill bit
[Packaging]: Packed Safely in Bubble Bag