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.
Make Your Own
Directions:
- 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.
Mark Hole Size with Pencil
This photo shows how to use a pencil and the "Hole Size" template with the lathe running.
Check Hole Size
This photos shows how to check an existing hole.
Mark Tenon Size with Pencil
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.
Check Tenon Width
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.
Check Tenon Length
This photos shows how to check the LENGTH of an existing tenon.
Give them a Good Home
This photos shows the jigs hanging in a handy location on the front of my Powermatic 3520C lathe.
These templates are one of the best ideas to come down the pike in a long time.
Carl,
Another one of your excellent ideas.
Fred