Threaded insert A23

metal

YIH TROUN Spot Drill features sandwich plug-and-clamp construction as well as special design with tapered key. It stays eccentricity ± 0.008mm, approaches almost zero eccentric in stationary status. A precise spot drill helps in great saving of tap breakage. The spot drill features two cutting angles, it preforms 45° chamfering and 142° spot positioning in single pass. It helps customer in saving one extra procedure and tool cost. 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.