RUBI Conical Diamond Grinding Bit 20 48mm

1 x RUBI Conical Diamond Grinding Bit 20-48mm. RUBI Diamond Grinding Bits are specially designed to enlarge or modify the diameter and shape of a previously drilled hole. They can also be used for smoothing, polishing or cleaning the inside edges of previously drilled holes. Suitable for landscaping materials. Diamond grinding bits are NOT suitable for drilling holes.