7pcs Countersink HSS Cone Hole Drills Bit Reamer Set for Chamfer Woodworking Tools
On the same axis, screw the screw cap below the plank plane, and the drill ring can be adjusted up and down.
It is suitable for drilling machine with chuck or joint, suitable for drilling on hard wood and wood layer, and for screwing wood screws.
Material: drill bit is high speed steel 4241, black part is 45# steel.
Specifications: 5#, 6#, 7#, 8#, 9#, 10#, 12#
Dimensions Corresponding drill bits specifications Chamfering dimensions of black first step
5# 1/8"(3.18mm) 9.3mm
6# 9/64"(3.58mm) 9.3mm
7# 5/32"(3.97mm) 9.3mm
8# 11/64"(4.37mm) 9.3mm
9# 3/16"(4.76mm) 9.3mm
10# 13/64"(5.15mm) 9.3mm
12# 7/32"(5.56mm) 9.3mm
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.
7 x Cone Hole Drills