Precision machined to exacting standards Rockwell hardness of 58-61 HRC Includes(20) coarse threads (2 each 1/4 NC 20, 5/16 NC 18, 3/8 NC 16, 7/16 NC 14, 1/2 NC 13, 9/16 NC 12, 5/8 NC 11, 3/4 NC 10, 7/8 NC 9, 1 NC 8) (20) fine threads (2 each 1/4 NF 28, 5/16 NF 24, 3/8 NF 24, 7/16 NF 20, 1/2 NF 20, 9/16 NF 18, 5/8 NF 18, 3/4 NF 16, 7/8 NF 14, 1 NF 14) Die stock handle wrench, die adapter, tap handle wrench, stubby screwdriver, T handle tap wrench, and blow molded storage case More details about product Grip 53300 45-Piece Tap & Die Set - SAE
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