uxcell 30 Pcs 2mm Dia Ball Shape Tip Diamond Bit Mounted Point Product Name : Diamond Mounted Point;Tip Shape : Ball Shape; Material : Alloy;Shank Diameter(Each) : 3mm / 0.12" Each Length : 45mm / 1.77";Tip Diameter : 2mm/ 0.079" Case Size : 143 x 60 x 20mm / 5.6" x 2.4" x 0.8"(L*W*T);Color : Silver Tone Total Weight : 107g;Package Content : 30 x Diamond Mounted Point