Eagle Rock Technologies, Inc. 48 Piece, Lathe Chuck Anti-Backlash Ring Set 1 to 3-15/16" OD A1-220-00 - 09451055 - Penn Tool Co., Inc
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) -
Ring Chuck
Ring Turning Chuck for 1-1/4"-8 TPI Lathe | Greenvill Crafts
Ring Turning with the Artisan Ring Boring Head - YouTube