3077GM

In HSS steel, CBN ground.
Cutting edges for right-hand rotation. To be used on pillar drills, magnetic or normal, with direct Weldon shank ø 19mm. Particularly suitable for drilling I-beams, large steel plates, steel, light alloys, etc. Special cut geometry allows to increase drilling speed, much higher than that of conventional helical bits. The core drills are supplied with integral shank, without pilot bits. Suitable for use on pillar drills with magnet Art. 3078 G-3078 GA-3078 GE-3078 GL-3078 GP.

Cutting depth 50mm

Crown mills Art. 3077 GM 61 to 75 mm Weldon 32 coupling for magnetic column drills Art. 3078 GL available on request.