TAP & DIE SET - 21 PIECE SAE

Tap & Die Set - 21 piece SAE 21 piece SAE (Society of Automotive Engineers or American standard measures)Tap & Die set cuts and repairs damaged internal and external screw and nut threads. Cleans worn threads of nicks and burs for smoother fit. Includes the following 17 tap & die sizes: 6-32 (stud size #6 - 32 threads per inch) 10-24 (stud size #10 - 24 threads per inch) 12-24 (stud size #12 - 24 threads per inch) 1/4-20 (stud size 1/4" - 20 threads per inch) 5/16-18 (stud size 5/16" - 18 threads per inch) 3/8-16 (stud size 3/8" - 16 threads per inch) 7/16-14 (stud size 7/16" - 14 threads per inch) 1/2-13 (stud size 1/2" - 13 threads per inch) 1/8"-27 NPT pipe tap die holder & tap wrench screwdriver