Threaded insert B23

metal

The spot drill was specially designed for the big drill with 135° ~ 140° included angle or users who request spot positioning. Features Patented design in almost zero eccentric, maximum eccentricity ± 0.008mm. Double effective chamfering teeth, redouble processing efficiencies. Designed with unique geometry angle on the center engage point which decrease cut resistance and eccentricity. It gives excellent spot precision and long tool life.