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Clark Sphere Turning Jig
Clark Sphere Turning Jig

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Our Price: $550.00

: TJ


Size Swing - HB

Lathe Gap Size

Lathe Type

The Clark Sphere Turning Jig is of heavy duty construction in order to be able to make spheres on 16" to 24" swing lathes. It can create a very small diameter sphere but can also create a sphere up to 3" below the maximum swing. A large bar can be used to do very large diameter concave bowls or platters. It is designed with fine and gross adjustment and has heavy thrust bearings.

Clark Sphere Turning Jig includes a 12 " bar with a .75 inch diameter hole in the end which is 6 inches deep, 3/4" holder with one 1/4" HSS cutter, and attachment plate and screw with sleeve. The back of the bar has a 2" deep hole with setscrews to allow attachment of an extension or end handle. Setup for height of lathe but adjustable through about 1 inch. Additional cutters, holders, bar extension and end handle are available as accesories.

Note the side braces are not as needed so are not included as of 12/2017.
The Clark Sphere Turning Jig in action courtesy of Jon Leggett
  • Basic System - Included with 12" holder Bar, 3/4" tool holder with 1/4" HSS cutter. Clark Deep Hollowing System holders, cutters and hollowing bars are compatible. Your tool will be one color of your choice except for the aluminum components.

    - The Bar is moved in and out coarsely by sliding it (fixed in place by a setscrew) or finely through a lead screw (depicted without threads) in the lower photo. The screw can be turned by hand for slow adjustment or with a drill motor for fast adjusting.

    - The jig attaches to the lathe bed through a pair of large thrust bearings not pictured. It pivots around these bearings to create the sphere. An attachment plate is needed that fits the gap of your lathe.

    Lathe Height - The height of the cutter is finely adjustable to match your lathe spindle height. The center sleeve can be changed so the jig can be used on different sized lathes from 16" swing up.

    Maximum Sphere Diameter
    - Diameter of possible spheres vary from very small up to 3" under the maximum capacity of the lathe. Thus on a 24" swing lathe you could cut a 21" diameter sphere.

Average Rating: 5 of 5 Total Reviews: 1 Write a review »

  1 of 1 people found the following review helpful:
Amazing, quality is unreal! April 17, 2017
Reviewer: Jeff from Hendersonville, TN United States  
this is the very best sphere jig ever made, the Clark Sphere Turning Jig is the very best and when you look at the price you may think wow that's a bit much however I cannot explain how well constructed this sphere jig has been constructed, I have owned the Sphere jig for several months now and can say it's the very best, please note, it can do more than just spheres! It's not a one trick pony, defiantly worth the money, I have no regrets with my purchase, 10 stars out of 5!

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