1-1/8"-12 UNF X 3" OD HSS Round Adjustable Die Contiguous 48 US States The smaller flat end keys

The smaller flat end keys are made from 8660 nickel chromium molybdenum steel that's heat-treated to 54–58 HRC and the larger flat end keys are made from 6150 chromium vanadium steel that's heat-treated to 44–50 HRC

Length 2-3/4"

it saves you time and helps you avoid unnecessary disassembly steps

This set includes 8

Size 1-1/2"-8

1-1/8"-12 UNF X 3" OD HSS Round Adjustable Die Contiguous 48 US States The smaller flat end keysProduct Description HSS Round Dies are for use in making new threads or re threading existing threads. They are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round dies are chamfered on both faces, one side has a 2 to 3 thread chamfer for threading and the other side has a 1 to 1 1 2 thread chamfer for threading close to a shoulder. Adjustments are made by a fine pitch screw which