I've recently picked up a CLARE A490 (size A) boxed collet chuck set, in very good condition. It contains 3 imperial collets, and a 1MT collet, and the collet chuck has a 2MT shaft with a female threaded end.
Firstly, does anyone know the shaft end thread size? (I have got this to use on my Centec mill as it has a lower height to the table than my Clarkson collet chuck, but I need to know the correct thread so I can make a new drawbar).
Secondly, can someone confirm the correct way to insert the cutters and tighten them in? (The collets accept plain shank cutters, or old ones with a tang at the end, and the collets have a thread to screw to the end cap. The end cap also screws to the main body. However, there is also a washer in the box. Is this part of the set, and if so, how does is it used?)
Any help would be appreciated - Thanks - Andy