IRWIN Silver & Deming High Speed Steel Fractional 1/2" Reduced Shank Drill Bit, 11/16" (585-91144)
$28.18
For use in 1/2" drill chucks. Three-flatted shank for secure grip. Coating: Black Oxide; Material(s): Steel; Size: 11/16" On 1/2" Reduced Shank.