Cobalt Piloted Double Margin Drill, Drill Bit Size #11 x #30, Drill Bit Point Angle 135 Degrees , Cobalt, Straw/Bronze, Decimal Equivalent 0.1910, Wire, Drill Bit Point Type Pilot Point.
1935, Wire, Drill Bit Point Type Pilot Point.Cobalt Piloted Double Margin Drill, Drill Bit Size #10 x #21, Drill Bit Point Angle 135 Degrees , Cobalt, Straw/Bronze, Decimal Equivalent 0.