Here is my reamer milling fixture. It is an engineering expedient caused by two problems. My early 80's Jet-16 mill/drill only has a 23 1/2" by 9 3/8" table, which is too short...and I don't have a 5C collet index, spacer or rotary table with chuck, any one of which would've been ideal for workholding. A proper subplate would've been aluminum plate...but the cost ($168) wouldn't have been justifiable. Two pieces of hardwood ply glued together provide a subplate of more than sufficient rigidity. A .500" reamed split bushing held in a vise hold's one end of the reamer blank, while the other is secured by the mill tailstock. Supports in the middle are absolutely necessary. These are "V's" I machined with brass hold down's. After building this fixture, I bought the two excellent Sean Reid Society Journals, and saw the fine article in vol. 2 by John Hughes on uilleann reamer making. In it, he uses vertical steel plate supports with holes drilled...of different diameters according to where they will be used along the reamer blank, and with a quarter section milled out for clearance. I consider that to be a better, more en-girdling support, and will probably change my support design later.