HSS Straight Shank Jobber Drills - JK Files & Engineering,HSS Cobalt DIN340 Fully Ground Straight Shank Twist Drills,Drill America 9/16 in. High Speed Steel Black and Gold,NEIKO 10235B 13/16” Drill Bit for Metal, 1/2” Shank, Silver,HSS Straight Shank Jobber Drills - JK Files & Engineering,