- Drill bit tip delivers effective drilling / breaking longer. - Drill bit tip maintains its effective drilling / breaking edges longer. - 4 cutter tip enables a more circular hole to be drilled.
The brown cloth-backed variant is suitable for universal, heavy-duty use on alloyed and non-alloyed steels, as well as non-ferrous metals. - The carton has a tear-off edge for separating the sections of abrasive belt at the workplace. - SBR 25, SBR 40 and SBR 50 correspond to shape B, ISO 3366. - SBR 100 corresponds to shape A, ISO 3366. - Abrasive: Aluminium oxide A
- The 8% cobalt content maintains a sharper cutting edge and delivers a 4X longer life versus DeWalt Black Oxide bits. - The optimised tip and flute geometry delivers 2X the penetration speed, versus DeWalt Black Oxide bits, removes material faster and reduces heat build up. - The stronger central core delivers 2X the resistance to breakage versus DeWalt Black Oxide drill bits.