Lathe Parting Tool Spring Type Tool Holder For QCTP

[jjr2001]

When it comes to parting off a 2" diameter piece of hot rolled steel my little mini lathe likes to chatter a bit. I built a parting tool spring type holder similar to the ones I have seen on the net. This one is different. It will mount up flush with the QCTP block and you will not loose any cross slide travel. It is made for the smaller tool holders like the HESS 250-00x holders and mounts up fine on the mini lathe. Using a 5/32" by 1/2" blade it cuts like butter without chatter. Just a bit of noise but it is the best parting off I have had with this lathe in the last 2 years.

So you need some steel
one block 1" x3.75" x 2"
one plate 1/8" x 2" x 1.2"
one 5/64" x 1/2" x 4.5" cutoff tool
6- 8-32 button head screws
3- 8-32 flat head screws
1- 3/8" x 7/8" spring pin
1- piece 1018 1/2" square

The outboard plate that clamps the cutoff tool works very well. I was concerned that it might allow the tool to move but it is rock solid.


Short video of the tool at work.

Cheers, JR