[EL34]

I recently got one of the Chinses mini lathes
A buddy of mine gave me a bunch of turning tools

I use mainly HSS and grind shapes so I am new to carbide inserts

He gave me a small boring bar that fits my quick change tool post
It is missing the carbide insert and the 3mm screw

Can anyone help me to figure out what type of carbide insert to buy that fits this boring bar?
I do mostly soft stuff like plastics and Aluminum and some very light steel machining

This web page was some help identifying shapes
https://www.mitsubishicarbide.com/en...identification

It is a Rhombic shape and I measured 80 degree
So it looks like C in the chart in my screen shot from that web site above

I measured 8mm wide on the tool surface where the side of the insert side would be
But if the insert sticks out past the edge of the tool, would the insert be a 8 mm side measurement or 9 mm side?

Measurements in my image below
80 degree angle
8mm side
9mm diagonal side to side
11mm diagonal length but probably 10mm not counting the round back area
2mm height in the tool cutout pocket

Any help here is appreciated
Thanks

[EL34]

edit, I may have posted this in the wrong board
I just saw the metal work tooling board
Admin, you can move this if it needs to be moved?

[fc60]

Greetings,

Does the bar have any identification on it? This will quickly determine the correct insert.

Cheers,

Dave

[EL34]

Hi Dave,
No it is a plain round bar with no marks

[EL34]

I gave up on this boring bar.
I ordered a set of 4 bars different sizes for $17 on Ali express

It comes with 10 inserts and 4 bars
6/7/810mm boring bars
https://www.aliexpress.com/item/1005...21ef1802BRP14X