uxcell 3mm Shank Mounted Grinding Point Set Sanding Sharpening Tool 50 Pcs Product Name : Mounted Grinding Point;Material : Abrasives, Metal Color : Dark Khaki, Silver Tone;Head Diameter : 8mm/ 0.3" Head Length : 20mm/ 0.8";Shank Diameter : 3mm/ 0.1" Total Length : 49mm/ 1.9";Weight : 217g Package Content : 50 (2%) x Mounted Grinding Point