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
Ring Crafters Ring Mandrel - Size 9-13 | ExoticBlanks
Stainless Steel Expanding Ring Mandrel (Set) - Walmart.com
JDG PRO expanding ring mandrel – full ring sizes 4-9 only
Ring Mandrels | Jewelry Equipment Supplies | Jewelry Making Supplies – Patrick Adair Supplies
Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Ring Sizes 11-14) : Arts, Crafts & Sewing
Ring Crafters Ring Mandrel 2 PC Set - Sizes 4-13 | ExoticBlanks
Pro Ring Mandrel - Rockler
JDG Pro Ring Mandrel – Craft Supplies USA
JDG Pro Ring Mandrel – Craft Supplies USA
Professional Ring Mandrel - Full Size 4-9 | ExoticBlanks
JDG ring Crafters expanding ring mandrel – Ringsupplies.com
Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. ( Ring Sizes 7.5-10.5) – BigaMart
Expanding Stainless Steel Ring Mandrel with Hex Allen Key - Heavy Duty Ring Shaper Tool for Ring Turning and Ring Making ( Ring Sizes 7.5-10.5 ) - Walmart.com
Amazon.com: Expanding Stainless Steel Ring Mandrel for Ring Turning and Ring Making. (Ring Sizes 11-14) : Arts, Crafts & Sewing
Ring Holding Expanding Mandrel Tool – Opal Ring Supply
Stainless Steel Expanding Ring Mandrel Set of 4, Stainless Steel Ring Mandrel, Ring Making Supplies, Ring Starter Kit, Ring Making Tools - Etsy
Universal Expanding Ring Mandrel - Ganoksin Jewelry Making Community
Expanding stainless steel ring mandrel for lathe and wood rings – Ringsupplies.com
Stainless Steel Expanding Ring Mandrel Set for the Mini-Lathe – Flamingo and Finch