I've been using an ER-32 collet chuck in the lathe spindle taper for a while and have been wanting to upgrade to a chuck mounted to the spindle nose for a while for the through-stock benefits. All the ones I've seen till now were 80mm or 100mm diameter and would need an adapter plate. I been window shopping for a long time on this one - my money has other priorities - until last week I came across an amazon listing with an ER-40, 132mm diameter with a 100mm recess and a 115mm diameter 3-hole mount - i.e. bolt-on Shoptask size!

It arrived today and *looks* perfect. The sizes are as advertised. I'll report back on the fit and taper runout. I don't actually have any collets for it yet, I wanted to see if it really was the right size first.

I thought I'd post this here as I've been looking for years for chucks to fit the spindle nose with no luck and I figure I'm not the only one. I have a 1998 1720XMTC

Listing https://www.amazon.com/HHIP-3901-503...KR9SD&dchild=1