EAGLE ROCK WET-1 1/4" to 2-1/2" Diameter Capacity Convex Turning Tool | Travers Tool
Assorts' Radius Ball Turning Tool for Lathe 3/8" Shank with HSS Tool Bit
Radius cutter (Ball Cutter) for the lathe
Micro-Mark 84833 Radius Turning Tool
How do I line up center a radius turning tool on the lathe, using measurement (not eyeballing). : r/Machinists
Small Ball and Radius Turning Tool - Designed to Cut Round Shapes or Curves in Brass, Aluminum, Steel, Wood or Plastic on your Bench Top Metal Lathe, ...