Ample performance with a 1,800 Watt motor. Thanks to the 255 mm stroke, larger parts can also be machined with this magnetic core drilling machine. The MABasic 850 magnetic CORE drilling machine is designed for core drills with a diameter of up to 75 mm and length up to 110 mm. This is an ideal machine drilling twist drill bits up to 31.75 mm diameter with MT3 Shank.