12 Pcs 12mm x 20mm Diamond Coated Cylindrical Rotary Mounted Point Product Name : Diamond Mounted Point;Material : Metal, Diamond Head Diameter : 12mm/ 0.48&#39;&#39;;Head Length : 20mm/ 0.8" Shank Diameter : 6mm/ 0.24&#39;;Total Length : 60mm/2.4&#39;&#39; Color : Silver Tone;Weight : 305g Package Content : 12Pcs x Diamond Mounted Point