Carbide O-Ring Dovetails for Lathes | AB Tools, Inc.
O-Ring & Receiver Groove Cutter [ORG-3] : BHJProducts.com, High Performance Engine Builder Tooling and Harmonic Dampers: +1 (510)797-6780
Just Clips - Tool Kit, Contains 1 Snap Ring Pliers, 1 PATENTED ClipKey, and 1/2" Milwaukee Clips - MADE IN THE USA (5 Friction Rings and O-rings) - Amazon.com