100 degrees countersink angle; shank 1/4 28 thd; drill 4 flutes 1/4 in. Taper per foot 0.906 in. Lg
A tool consisting of any combination of drill, pilot drill, reamer, countersink, or counterbore. It is designed to form a hole for fasteners with a specific grip length and machined to a close tolerance to provide a drive fit. The tool has a shank requiring a special tool holder to be used in a power feed hand drilling machine or a power feed drill press.
Classification: Drilling, threading or tapping tools and parts thereof, base metal
NSN 5975-01-413-0518
NSN 5985-01-141-7059
NSN 5930-01-395-0375
NSN 6110-01-033-5184
NSN 6220-01-500-0740
NSN 6645-00-958-5299
NSN 5999-01-626-0400
NSN 5965-01-540-6843
NSN 5910-00-081-1795
NSN 6105-01-429-0232
NSN 5920-00-246-5992
NSN 2925-01-556-0333