Ball and Radius Turning Tool, LargeMade in United States

Ball and Radius Turning Tool, Large
  • Turn round shapes or curves on metal mini lathe
  • For brass, aluminum, steel, plastic
  • Cut convex curves up to 1 3/4" in diameter
  • 1/2" Shank
Part Number: 2568
Weight: 0.76 lb

Price: $129.95

In stock
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The Large Radius Ball Tool, like its smaller counterpart, is designed to cut round shapes or curves in brass, aluminum, steel, wood or plastic on your own lathe. Balls in the ends of rods, shafts, or handles are easily turned with the tool. You can also make ball joints, governor weights, railing knobs, round contact points for tools, nose cones, and many other useful and decorative objects.

The lathe radius turning tool is sized for lathes of 5" or greater swing, and the 1/2" shank size will fit most standard tool holders. The tool will cut convex curves up to 1 3/4" in diameter. This lathe ball turning attachment is designed so that the center height is 3/8" from the bottom of the shank. The tool comes with a pre-ground HSS tool bit which may be easily sharpened or modified.

This tool is manufactured from the highest quality materials. Frames and handle are machined from high strength aluminum alloy. The pivot pins are hardened and ground and rotate in custom bronze bearings. The tool is completely machined from solid metal stock, there are no stamped, cast or pressed parts. A pre-ground High Speed steel tool bit is included. Each lathe radius turning tool is manufactured in the USA for by Belfanti Toolworks and is carefully assembled and inspected before shipment in our warehouse.

Chris Chris' Tips
Here's a comparison of the ball and radius turning tools.

Here are complete instructions for the Large Ball and Radius Turning Tool.

Here are samples of work done with the Large Ball and Radius Turning Tool. The ball at lower right was turned from 1.5" diameter aluminum

Here is an outline drawing of the Large Ball and Radius Turning Tool.

Here is the large ball and radius tool in use

Here is a video showing how to use the ball and radius turning tool.

Maximum Convex Diameter 1.75" (44.4 mm)
Maximum Concave Diameter None
Minimum Convex Diameter 0.0" (0 mm)
Minimum Concave Diameter None
Tool Dimensions (L x W x H) Without Handle 6.0" x 0.5" x 5.2" (152 mm x 13 mm x 133 mm)
Mount Dimensions (L x W x H) 2.5" x 0.5" x 0.5" (64 mm x 13 mm x 13 mm)
Handle Length 5.2" (133 mm)
Handle Height 3" (76 mm)
Shank Size 0.50" (12.7 mm)


This product works with these products:

This product works with lathes with a 7 to 16 inch swing including:

  •   Enco 110-0803 Enco 7x10 Mini Lathe
  •   Harbor Freight 93212 Central Machinery 7x10 Mini Lathe
  •   Harbor Freight 33684 Central Machinery 7x10 Mini Lathe
  •   MSC 0192857 Enco 7x10 Mini Lathe
  •   Bolton CQ9318 7x12 Mini Lathe
  •   Busy Bee Tools CX704 Craftex 7x12 Mini Lathe
  •   Cummins (Tools Now) 5278 7x12 Mini Lathe
  •   Eastwood 32497 7x12 Mini Lathe
  •   Grizzly G8688 7x12 Mini Metal Lathe
  •   Harbor Freight 93799 Central Machinery 7x12 Mini Lathe
  •   Homier 03911 Speedway 7x12 Mini Bench Metal Lathe
  • 1014 7x14 Mini Lathe
  • 1012 7x12 Mini Lathe
  •   Northern Tool 49656 KLUTCH 7x12 Mini Lathe
  •   Princess Auto 8507659 Powerfist 7x12 Mini Lathe
  •   SIEG C2 7x12 Mini Lathe
  •   Tormach 30689 7x12 Duality Lathe
  •   Travers Tools OT222300 OTMT 7x12 Mini Lathe
  •   Warco 3005 7x12 Mini Lathe (Imperial)
  •   Warco 3004 7x12 Mini Lathe (Metric)
  •   WEN 3455 WEN 7x12 Mini Lathe
  •   Micro-Mark 82500 MicroLux 7x12 Mini Lathe
  • 4100 HiTorque 7x12 Mini Lathe
  • 4200 HiTorque 7x12 Deluxe Mini Lathe
  •   SIEG SC2 7x12 Mini Lathe
  •   Micro-Mark 82710 MicroLux 7x14 Mini Lathe
  • 4959 SIEG 7x14 Mini Lathe
  •   SIEG C3 7x14 Mini Lathe
  •   Big Dog BD-0618x300 7x14 Mini Lathe
  •   Big Dog BD-0618Ax300 7x14 Mini Lathe
  •   Warco 4800-350 7x14 Mini Lathe (Imperial)
  •   Warco 4820-350 7x14 Mini Lathe (Metric)
  •   Grizzly G0765 7x14 Mini Lathe
  •   Micro-Mark 84631 MicroLux 7x16 Mini Lathe
  • 5200 HiTorque 7x16 Mini Lathe
  • 7450 HiTorque 7x16 Mini Lathe
  • 7350 HiTorque 7x16 Mini Lathe
  • 5100 HiTorque 7x16 Mini Lathe
  •   Prazi SD400 7x16 Lathe
  •   MX-8x14 Preenex (and others) 8x14 Lathe
  •   Harbor Freight 44859 Central Machinery 8x12 Precision Mini Lathe
  •   Grizzly G0768 8x16 Benchtop Lathe
  •   Emco Compact 8 8x17 Lathe
  • 3536 HiTorque 8.5x16 Bench Lathe
  •   SIEG SC4 8.5x16 Bench Lathe
  •   SIEG C4 8.5x16 Bench Lathe
  •   Travers Tools OT218410 OTMT 8x16 Bench Lathe
  • 3540 HiTorque 8.5x20 Bench Lathe
  • 3595 HiTorque 8.5x20 Deluxe Bench Lathe
  • 7550 HiTorque 8.5x20 Deluxe Bench Lathe
  • 7500 HiTorque 8.5x20 Bench Lathe
  •   BD-920N Jet 9x20 Lathe
  •   Grizzly G4000 9x19 Bench Lathe
  •   Harbor Freight 45861 Central Machinery 9x20 Bench Lathe
  •   SIEG C6 10x21 Lathe
  •   Busy Bee Tools CX705 Craftex 10x21 Lathe Mill Combo
  •   Grizzly G0516 10x21 Lathe Mill Combo
  •   Prazi SD500 10x20 Lathe
  •   SIEG M6 10x21 Lathe Mill Combo
  •   SIEG C8 11x24 Lathe