10 Pics Diamond Coated 8mm Cylinder Head Mounted Points Grinding Bit ,3mm Shank Product Name : Diamond Mounted Point;Tip Shape : Cylindrical Material : Metal, Diamond;Head Diameter : 8mm Head Length : 13mm/ 0.51";Shank Diameter : 3mm/ 0.118" Total Length : 45mm/ 1.8";Color : Silver Tone Weight :56g;Package Content : 10 x Diamond Mounted Point