Carpentry Countersink Drill Step Drill bits counterbore drill bits
Name: Countersink Drill
Packing: plastic box
Material: cutter head YG8 alloy, cutter body 45# carbon steel, surface sprayed
Packing size: 18mm*18mm*95mm
Weight: single 31g, 5-piece set 155g
Application: used for wood, aluminum alloy screw counterboring, opening.