High speed steel; size no. 21 pilot
No other part numbers with same form, fit, and function found.
The detachable portion of a machine countersink which includes the cutting edge, having various size cutting angles and a special shank. The special shank is designed to accommodate a special holder. The cutter may have an integral pilot or be designed for an interchangeable pilot, which may or may not be included. For items with special holder included, use countersink.
Classification: Drilling, threading or tapping tools and parts thereof, base metal
NSN 6135-01-193-8154
NSN 2925-01-497-9381
NSN 5910-00-226-0775
NSN 6110-01-059-0617
NSN 4140-01-270-7464
NSN 5996-01-221-9472
NSN 5935-00-959-6853
NSN 6610-01-522-5751
NSN 6220-00-147-4011
NSN 5925-00-415-2286
NSN 6110-01-351-3216
NSN 5925-01-117-1518