uxcell 2 Pcs 3mm Dia Head HSS Center Spotting Drill Bits Countersinks Product Name : Center Drill Bit;Tip Diameter : 3mm/ 0.1" Shaft Diameter : 8mm/ 0.3";Total Length : 50mm/ 2" Material : HSS;Color : Silver Tone Weight : 25g Package Content : 2 x Center Drill Bit