Diamond core bits are used for drilling, porcelain, marble, granite, concrete, asphalt or reinforced concrete, with fast drilling and long life. Segments type includes normal segment, roof segments, turbo segments and crown segments. Size from 6.5mm to 152mm.
Thread size, 3/8 or 1/2 shaft without thread, 5/8 11, UNC1-1/4
Delivery time: Around 30days