Making a Ring Mandrel and Bushings for turning rings on a lathe

I've used a lot of different ring mandrels on metal lathes and am always looking for safer ways for students to turn rings. I've spent money on 'premium expa

DESCRIPTION – This expanding ring mandrel for lathe comes in three different sizes-small, medium and large. Small size mandrel fits ring sizes 4 to 7.

Expanding Ring Mandrel with Hex Allen Key – Set of 3 Premium Stainless Steel Ring Mandrels Lathe – Heavy Duty Ring Shaper Tool for Ring Turning and

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How to make a tool for turning Rings