ITEM NAME:6 mm shank 12 mm cylinder head Diamond grinding head 5 pieces F1G3 6 mm shank 12 mm cylinder head Diamond grinding head 5 pieces F1G3 Product Name: Diamond head grinding head Material: metal, diamond Color: silver Weight: 128 g Head diameter: 12 mm Head length: 20 mm Shaft diameter: 6 mm Total length: 60 mm Package content: 5 x diamond point grinding head Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/-1-3cm.