This transfer punch set is a must have for all metal workers and machinists. It takes the guesswork out of transferring threaded drilled or reamed holes. Made from carbon steel with industrial black oxide finish and added hardened working tip ends to emulate hold patterns and make setting spots for threaded holes a snap. Includes plastic base with molded holders and fraction raised labeled sizes. Sizes include: 13/32”, 27/64”, 7/16”, 29/64”, 15/32”, 31/64”, 1/2", 17/64”, 9/32”, 19/64”, 5/16”, 21/64”, 11/32”, 23/64”, 3/8”, 25/64”, 17/32”, 3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 11/64”, 3/16”, 13/64”, 7/32”, 15/64”, 1/4".