Suggest it to Tormach to add to their flat nosed 3/4" R8 TTS collet. Dunno how
hard the top flange surface is on their TTS holders and epoxy on converter
rings. One neat thing about the TTS holders is they work in the vertical head
for a Hardinge UM/TM horizontal mill with a stock 3/4" 4C collet.
Rather than modifying an R8 collet with a slot for the head of a set screw for
your tap hats, why not make the tap hats from hex bar stock with headless set
screws and use a collet with a 6 sided hole?
On Sunday, February 7, 2021, 5:40:41 AM MST, Gene Heskett
<ghesk...@shentel.net> wrote:
As a user of numerous, not all alike, TTS style tool holders, I should
put a similar locking scheme into effect for the 3/4" R8 collets. By
putting a locator pin in the upper face of the TTS flange and a matching
pinhole in the edge of the R8 collet, obviously timed to the pin slot in
the collet. But it will take a carbide drill to make those holes, those
collets are HARD, its all a coated carbide end mill can do to make the
slot/cup for the capscrew in the tap hats.
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