6 Pcs, High Speed Steel, Black Oxide, #31 x 12" HSS Aircraft Extension Drill Bit, Qualtech, DWDA/CX1231
$35.53
Size: #31; Material: High Speed Steel; Finish: Black Oxide; Flute Length: 1-5/8"; Overall Length: 12"; Shank Type: Round; Style: Aircraft Extension; Cutting Angle: 135; Point Type: Split Point; Number of Flutes: 2; Cutting Direction: Right Hand