• LONG LIFE - Heat treated and tempered high speed steel construction for longer tool life.
• ACCURATE THREADING - Ground chamfered, hand-polished threads for superior performance.
• FOUR-FLUTE DESIGN - Reduces the load on each thread cutter.
• EASY IDENTIFICATION - Custom imprinted with K-M, U.S.A., HSS, size and tap style.
• MADE IN THE U.S.A.

NOTE: Numbers ending in RE are refill kits of all set contents with no index.