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Details;

Three Helical Flutes ground on Ceratizit Micrograin Solid Carbide.

0.1400" Major Diameter and 0.3125" (10 pitches) Length of Cut.

3/16" Shank Diameter and 2-1/2" Overall Length.

Machine Internal or External 60 Degree UN Threads.

Machine larger threads of same pitch.

Proudly CNC ground by us in the USA. These are not Chinese Junk being re-sold.