Hi Guys,
I had a number of 1/4 inch square HSS tool bits, and have been using them in J&S tool holders. I have fancied making a new tool holder to what is a very old concept, where the tool bit is held in the vertical mode. Up to now I have have only seen shop made designs that are big and clumsy. I have been inspired to make this tool holder to a design recently posted by Arbalest on another forum. The machining is a little tricky and I used a compound angle vice on the mill. I used a 10 degree front and side rake for mine. Used a simple wooden block with vee slot milled in for grinding the tool bit. I tried the completed tool on a piece of rusty old cast iron, and was very surprised how good the finish was, when feeding towards the chuck, and even better when feeding to the tail stock.
I have no hesitation recommending this design, thanks Arbalest, well done David