I utilise a 5" Crawford Trugrip collet chuck and seeking a 13/16" collet should anybody have any orphans.
These collets are almost identical to a standard 5C collet (1.25" shank), but have a 12 t.p.i. LH thread. The 5" collets are stamped 9252, and have an interlocked left/right letter C stamped on their top face. I have a range of 1/16" - 3/4" collets, and interested to obtain any other metric or imperial sizes.
Any assitance would be greatly appreciated - Geoff