Emco Unimat 3 / Proxxon (20mm collet) Drill Holder

Proxxon micro-drill (or any other with 20mm collet) holder for the Emco Unimat 3.  Designed for cross drilling pin-holes, grub-screws etc etc.  Fixes to the cross-slide, putting drill and headstock centres at the same height.  

Can be used as-is, but is best used with some way of locking the headstock.  e.g. My Headstock Dividing Plate allows controlled drilling of holes around a rod for 3-way grub screws etc.

This was based on an aluminium one I made up and used for many years.  I’ve been pleasantly surprised at how solid it is when made in PLA.  It is in fact far superior to the aluminium one because it locates firmly on and into the bed of the cross-slide allowing for quick, easy and repeatable use.

Needs:

-  a normal T-Slot nut with c26mm M6 screw - I use a hex-headed one with a couple of washers to attach it to the cross-slide

-  a c30mm M5 hex headed screw with nut for the collet clamp.