![Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Full Set) : Arts, Crafts & Sewing Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Full Set) : Arts, Crafts & Sewing](https://m.media-amazon.com/images/I/61gfQspQg2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Full Set) : Arts, Crafts & Sewing
![Amazon.com: Expanding Ring Mandrel with Hex Allen Key – Large Size Steel Ring Mandrel for Lathe – Heavy Duty Ring Shaper Tool for Ring Turning and Ring Making - Ring Sizes(11-14) - Amazon.com: Expanding Ring Mandrel with Hex Allen Key – Large Size Steel Ring Mandrel for Lathe – Heavy Duty Ring Shaper Tool for Ring Turning and Ring Making - Ring Sizes(11-14) -](https://m.media-amazon.com/images/I/81DXBWhq6sL.jpg)
Amazon.com: Expanding Ring Mandrel with Hex Allen Key – Large Size Steel Ring Mandrel for Lathe – Heavy Duty Ring Shaper Tool for Ring Turning and Ring Making - Ring Sizes(11-14) -
![This might be a dumb question, but I'm new to machining. I'm trying to recreate this expanding ring mandrel. How do I machine the inside hole where the screw goes to make This might be a dumb question, but I'm new to machining. I'm trying to recreate this expanding ring mandrel. How do I machine the inside hole where the screw goes to make](https://preview.redd.it/wvb2b4ya5gv71.png?width=640&crop=smart&auto=webp&s=2c392e9b4c442fdaccfb5b850228363250ad8662)
This might be a dumb question, but I'm new to machining. I'm trying to recreate this expanding ring mandrel. How do I machine the inside hole where the screw goes to make
![Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Ring Sizes 11-14) : Arts, Crafts & Sewing Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Ring Sizes 11-14) : Arts, Crafts & Sewing](https://m.media-amazon.com/images/I/51dq9aAr++L.jpg)
Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Ring Sizes 11-14) : Arts, Crafts & Sewing
![Amazon.com: Expanding Ring Mandrel-Ring Mandrel for Lathe,Ring Stretcher, Ring Sizes(7.5-10.5) Turning and Manufacturing Rings Making : Arts, Crafts & Sewing Amazon.com: Expanding Ring Mandrel-Ring Mandrel for Lathe,Ring Stretcher, Ring Sizes(7.5-10.5) Turning and Manufacturing Rings Making : Arts, Crafts & Sewing](https://m.media-amazon.com/images/I/51CaKIWPkhL._AC_UF894,1000_QL80_.jpg)