Boring and Ball Turning Toolpost

Box 88
Pine Grove Mills, PA  16868
I welcome phone calls and emails -



This kit makes a versatile tool that can be used in two modes. In the ball turning mode, seen in the photo, the toolpost is being set up to locate for the final cut in turning a sphere. The ball turning mode requires no complicated worm and wheel or micrometer adjustment to turn accurate radii. Spheres up to slightly more than 1 1/2" diameter can be turned (on South Bend 9 inch lathes--larger lathes may permit larger diameters). Concave surfaces can also be turned. For the boring mode, a sturdy casting is supplied for a toolholder that mounts on the base casting. The toolholder accepts boring bars up to 3/4" diameter and is exceptionally rigid. It may also be mounted on the topslide compound. The kit includes five iron castings, drawings, and illustrated machining and operating instructions.

Shipping wt. approx. 14 lbs.
$82.50 plus shipping
Drawing only $13.00

MLA-13Above, The MLA-13 boring and turning toolpost set up in the boring mode.
Domestic (U.S.A.) Canada
(limit of 20 lbs.)
17.05 54.65 INQUIRE

The above rates are FLAT RATE Priority Mail.

Below, CENTERING THE BORING AND BALL TURNING TOOLPOST (MLA-13) BALL TURNING MODE USING THE GAUGE PIN. At this point the cross slide micrometer dial is set at "zero" to indicate where to make the final cut, and the ball turning operation can proceed.