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 6145-00-849-1353
NSN 5905-00-403-5793
NSN 5895-01-441-0713
NSN 6135-00-315-1187
NSN 5925-01-444-5274
NSN 6320-01-578-6006
NSN 5915-00-100-5239
NSN 5985-01-137-8190
NSN 5999-01-606-9766
NSN 6135-01-111-1495
NSN 6610-00-480-1200
NSN 6220-01-475-6282