Core drill made of heavy-duty high speed steel. Suitable for steel (such as T-brackets, large sheets), cast iron, non-ferrous and light metals.For use in magnetic-stand and pillar drilling machines with morse taper retainer. In connection with RUKO arbor holders no. 108 302 / 108 303, with RUKO EasyLock no. 108 312 / 108 313 or a weldon direct shank suc