11-20-2014, 11:56 PM
Another thing I'm thinking of doing with Tom's design is to make a second style of holder that has a 3/4" straight shank and be grabbed in my Jacobs 18N drill chuck, held in the tailstock. Then it could act as the Hardinge U-style knurling tools I used on smaller machines to just feed over the end of a part in the chuck or collet. No sideways torque on the toolpost!