Precision Twist TS10 High Speed Steel Threaded Shank (Short Series) Drill Bit, Black Oxide Finish, Threaded Shank, Spiral Flute, 135 Degree Point Angle, 1/4" $13.60 B003JTILWI
Precision Twist TS10 High Speed Steel Threaded Shank (Short Series) Drill Bit, Black Oxide Finish, Threaded Shank, Spiral Flute, 135 Degree Point Angle, 3/16" $7.38 B003JTILX2