Carl’s Tenon Size and Hole Size jigs for the Oneway Stronghold Chuck with #2 or #3 profiled jaws.
Over the years I have seen and used a lot of different jigs for Tenon Size and Hole Size needed to match #2 or #3 profiled jaws on a Oneway Stronghold chuck. Here is what I am currently using. Two very simple and easy to make jigs.
Remember that chucks hold best when the jaws are almost all the way closed.
- Click here and print out the PDF with above jigs. Print at 100% on 8.5" x 11" paper.
- Use a ruler to check the 4" dimension on the Tenon Jig. If not 4" then fix. Change “Page Scaling” to “None” on print menu, etc.
- Glue print out to 1/4” plywood. I like to use 3M "77" spray adhesive.
- Cut out with jig saw, coping saw, etc. I just to use my small bandsaw with a 1/4" blade. See my "Small Wood Bandsaw" blog entry.
- Optional. Spray with clear polyurethane, etc to make the paper last longer.
This photo shows how to use a pencil and the "Hole Size" template with the lathe running.
This photo shows how to use a pencil and the "Tenon Size" template. You can turn the lathe on and run the line all the way around if it floats your boat.
This photos shows how to check the WIDTH of an existing tenon.
Remember that the jaws on Oneway chucks like straight tenons (NOT dove tailed) with nice SQUARE corners.