American Machinist

Idea further ratchets up manual tapping. (Practical Ideas).

MY IDEA IS IN REFERENCE TO ONE THAT APPEARED in American Machinist ("Idea ratchets up manual tapping accuracy," July 2002, p. 90). However, my manual tap handle involves a socket drive, two extensions, a socket, and a manual tap holder.

I fit the socket over the manual tap holder and secure it using a 3/8-in. …

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