Robust Collet Stem, Nut & Ferrule Only-25

In regards to tools with square or rectangular tangs, ER collets have eight segments. You’d want the corners of the square shank to register in them.  If the four collets we provide don’t work, you should be able to find one online that will at nominal cost.  All of the rectangular tanged tools Robust manufacturers will fit one of the supplied collets.

Warranty
Metal parts: 5 years.