Hello Kelico,

Welcome to the Forum.

I think your mill would be the Dore-Westbury that your grandad built from a kit of parts, either the Mk1 the Mk2 depending on kit he built from.

I did at one time have a morse taper holder for the collets which are a close fit in the bore of the holder with a cross piece at the base to drive them. At the bottom of the holder is a pointed cone that locates in a centre in the cutters, against which outer cap for the collets can screw down onto to provide grip on the cutter. I sold mine on in favour of the more useful spring collets that are now widely used to take advantage of the variability they provide in gripping diameters within a range of 1mm differences. I think too they are more accurate in locating cutters than the Osborn Titanic type I was describing earlier

Small the mill  maybe but I have had excellent service from mine, the Mk2 with 3MT bore, that I built over 30 years ago. Its only annoying drawback in use is the round column support that makes it very easy to lose position above work if you have to alter the ‘daylight’ height below the cutter. A laser lecture pointer, the type which projects a spot, mounted on the mill body is useful in re-established that position.

I hope that helps you

Kind regards

Brian

Hi Kelico welcome to the forum

H