Add to Wish List Quick view BAC #: DRILL-BIT-12 Cobalt Drill Bits, 12" In Stock 12" High Speed Steel Aircraft Extension Drills feature a 135 degree split point, manufactured to NAS Standard 907. Sizes: 1/4, 10, 19, 21, 30, 40. MSRP: Now: $7.20 - $8.98 Was: View Price Breaks MSRP: Now: $7.20 - $8.98 Was: Quick view Qty in Cart: 0 Price: MSRP: Now: $7.20 - $8.98 Was: Subtotal: