Description
High Speed Steel. Drill and Counter-Bore Bit,
Enlarge the top porting of an existing hole by forming a cylindrical-shaped opening with a flat bottom.
This acts as a seat for a standard cap screw head M5, M6, M8, M10mm.
Drill and Counter-Bore Bit (180° Step Drill Bit)
$12.00
Description
High Speed Steel. Drill and Counter-Bore Bit,
Enlarge the top porting of an existing hole by forming a cylindrical-shaped opening with a flat bottom.
This acts as a seat for a standard cap screw head M5, M6, M8, M10mm.