DIY Ball Turning Attachment for Lathes/Radius Turn Ball up to 38 mm Diameter: Amazon.com: Tools & Home Improvement
Ball Turning Attachment for Lathe Machine - Metalworking Tools-Bearing Base, Gray, 38 mm - Amazon.com
BLUEFOX TOOLS Ball Turning Attachment For Lathe-Turns Round Concave and Convex Metal-Sphere - Amazon.com
Assorts' Radius Ball Turning Tool for Lathe 3/8" Shank with HSS Tool Bit - Amazon.com
Amazon.com: EZ Turn PVC Ball Valve Adjustment Tool Set, Swimming Pool Valve Adjustment Tools, FITS Valve Sizes 3/4inch, 1inch, 1 1/2inch and 2inch. (Purchase Individually or as Set of 4), Black, 1
Assorts' Exclusive World's 1st Direct Fitting Ball Turning Attachment For 7 x 14 / 7x16 Mini Lathe -Turns Concave & Convex Balls (*See working video on the link) - Amazon.com
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, LittleMachineShop.com (2569) - Amazon.com
Assorts Lathe's Ball Turning Attachment with Size Scale (Oval Base-Double Bit-For Myford & Similar Size) - Amazon.com
Assorts' Radius Ball Turning Tool for Lathe 3/8" Shank with HSS Tool Bit - Amazon.com
Quality Bearing Base Smooth Rotation Ball Turning Attachment Machine Tools ((Single Bit for Myford & Similar Lathe)) - Amazon.com
Tool Bit, Large Ball and Radius Turning Tool, LittleMachineShop.com (2963) - Amazon.com
Large 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, LittleMachineShop.com (2568) - Amazon.com