A tool of various shapes and design used primarily for checking the point angle of twist drills or as a standard for accurately grinding the point on twist drills. Some types may be used as a hook rule, plain rule, depth gage, height gage, try square, level, slide caliper, countersink gage, or any combination thereof. A portion of the tool, or a combination of assembled parts forms either a 59 degree or a 118 degree angle. See also square, double.
Classification: Other measuring or checking instruments, appliances and machines, nesoi in chapter 90
NSN 5998-01-383-1912
NSN 5910-01-541-5950
NSN 6105-00-925-2226
NSN 5975-01-648-9833
NSN 6105-00-847-8199
NSN 6130-01-237-5435
NSN 6150-01-395-2112
NSN 5920-01-346-4777
NSN 5910-00-004-9216
NSN 6135-01-034-5202
NSN 6135-01-458-7476
NSN 5935-00-844-3607