Drilling perfectly round holes in steel, brass, copper, aluminum, wood and plastic.
* HSS Step Drills for drilling cylindrical holes in solid material up to a thickness of 4 ~ 5mm.
* Burr-free and vibration-free drilling.
* The tapered cutting edges of the next drill step can be used for simultaneous deburring or chamfering of the finished bore at the same time.
* Drilling perfectly round holes in steel, brass, copper, aluminum, wood and plastic.
* Drills up to 13 holes sizes with one bit.
* Ideal tool for sheet metal workers, electrical contractor, auto mechanics, and general contractors.
* Surface treatment available: White Finish, Black Oxide, Titanium Coated, Cobalt Coated, TiALN Coated