ADDING TOMMY BARS
4-JAW CHUCK
Date: 2-21-2020
I finally bought a Sherline 4 -jaw independent chuck! Now to find a project for it :) To my surprise Sherline does not drill the chuck for tommy bars ?? They want you to unscrew one of the jaws and tap on it to loosen. What?! This can't be true!
Drilling Holes
Drilling holes into the chuck is very easy, the material they use is very machinable. It is made from free machining steel 12L14.
- Use a little oil
- Center drill bit
- 5/32 drill bit
- 16 mm deep