SHOPMASTER TOOLING

ST 21 and ST 21 M

The ST 21 is a  40 piece set of high carbon steel  taps and dies consisting of the most popular sizes from 4-40 to 1/2-20.  It also includes pipe taps, a screw pitch gauge and handles for both taps and dies.  Held in a form fitted carrying case.
ST ST 21 M is a similar 40 piece set, but containing all the common metric sizes.