Thread: An interesting parting tool

Interesting idea, to make one you would have to play with the spring pressure and hole depth for the ball to sit in.
The detent would have to be pretty strong as there would be a lot of pressure that far out.
Who is going to make one? LOL

Dave

This tool has a similar effect to a gooseneck tool.
It has the same advantage of not digging in, and is instantly self-resetting. Effectively, you don't know it's doing it - just works smoother.

I like the idea of an inclined blade so that the cutting edge is widest, avoiding side rubbing.

Jordan

Not a problem if you have a Quick change tool post. I have done this this a import P/O tool and just screwed some 16mm sq. cold rolled to the unit.

The old type Lock brand toolholder was harder than a bull's forehead and could not be drilled or tapped.That was tack welded with stainless steel. Not very machinist like ,but it worked.
Grahame

I also have a "Lock" brand parting tool holder. I was going to mill it down to 16mm so it would fit into an AXA tool holder. In the end I just bought one of these. I hope it works. Now waiting for the T-style parting blade to arrive from McJings.

NEW AXA 7 Universal Parting Blade Holder Lathe Quick Change 250 107 | eBay

Chris

Originally Posted by nadroj

This tool has a similar effect to a gooseneck tool.
It has the same advantage of not digging in, and is instantly self-resetting. Effectively, you don't know it's doing it - just works smoother.

I like the idea of an inclined blade so that the cutting edge is widest, avoiding side rubbing.

Jordan

Here's a modern version by Rimet. The angled slot in the body behind the clamp screw allows the head of the tool where the 3/32" tapered blade is mounted to flex relative to the tool shank, allowing the cutting edge to dip downwards and reduce the depth of cut instead of digging in when the cut is too heavy. It works very well on a light lathe - probably shouldn't risk say this in case my luck changes, but I have never yet had it dig in while parting on the Brackenbury & Austin lathe, which is showing some wear after its 65 years of use.

Frank.

I'm guessing that gooseneck tools like the one Rimet sell aren't appreciated my some, because they they look so archaic and simple.
Do yourselves a favour folks, and check them out.
They are also excellent for use in shapers.
The new tool with the detents looks very nifty. I wouldn't mind one of those too. Price?

Jordan