3mm x 3mm Ball Head Buffing Bits Diamond Mounted Point 30 Pcs Product Name : Diamond Mounted Point;Material : Metal,Diamond Shank Diameter : 3mm / 0.12";Head Diameter : 3mm /0.12" Total Length : 45mm / 1.8";Color : Silver Tone Weight : 109g Package Content : 30 x Diamond Mounted Point 1 x Plastic Case