1pc Countersink Drill Bit Woodworking 1/4″ Hex Shank Alloy Steel Salad Drill Step Drill Bit Power Tools Workshop Equipment(3.5X12.5mm)

1pc Countersink Drill Bit Woodworking 1/4″ Hex Shank Alloy Steel Salad Drill Step Drill Bit Power Tools Workshop Equipment
1/4″ hex shank can be used with power drills and quick change chucks.
The hexagonal shank makes the drilling work quick and easy, and it is not easy to fall off.
The adjustable stop collar allows you to either set the screw head flush with the surface or drill.
Countersinks will drill the pilot hole and countersink or counter-bore for screws in step. Countersink to drive the head of the screw flush with or slightly below the surface.