What's that Lassie? You say that Joe AutoDrill fell down the old
rec.crafts.metalworking mine and will die if we don't mount a rescue
by Fri, 13 Aug 2010 10:05:01 -0400:

...Anyone know of a manufacturer making ER-style collets to hold hex shank
tooling?

Nope. But if your hex is small enough, you might press it into a
sleeve that will fit in the largest ER collet your tool holder takes.

IE: press a 1/4" hex shank into a 10mm OD sleeve to be held by a ER16
collet.

--

Dan H.
northshore MA.