5210-00-221-1992

(27) leaves have the following threads per inch: 2-1/4, 2-3/8, 2-1/2, 2-5/8, 2-3/4, 2-7/8, 3, 3-1/4, 3-1/2, 4, 4-1/2, 5, 5-1/2, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 20, 24 & 28. (2) blade groups. Hardened steel feeler gage has 60° angled teeth for chec