Tru-Cut MFG 5/16" Cobalt Jobber Drill Bit COB.312

Designed with optimized geometries that deliver 3 time more life than competition

Patented web taper is 2 time larger than the competition for increased strength, rigidity and breakage resistance

Optimized 135 degree split point gives exceptional service life and also allows the bit to start on contact

Heavy duty flute design produces maximum durability

Increased cobalt content provides exceptional wear resistance and longer life

Cobalt bits for drilling into metal

135 degree split point to reduce walking when starting bit