3/4" Lathe Internal Boring Bar Turning Tool Holder S20R-MWLNR08 with Indexable Carbide Turning Insert WNMG432

It works. Had a starter bore size of 1.755 and had no problems. Even took a .035 feed (280 rpm) rate cut with no problem. I was cutting aluminum 6061. After the 3rd pass, I dialed it Bach to .02. Left a deep .01 chip groove. I was roughing as well and testing it out. But it.

Good quality, heavy boring bar. Bought this to build a large fly cutter. (it has to be used in reverse for this application)

Awesome boring bar

The tool holder works well, clamps well and is pretty solid. The inserts are really cheap and wear quickly, but some high quality inserts. Once I swapped to good inserts the chips started flying.

Producto de muy buena calidad

This tool HOGS! I'm completely blown away by this tool, and I'll definitely be looking for replacements for my current tools from this brand. I was incredibly impressed by the fit and finish on the boring bar before I even installed it. It got even better after my first cut into a hardened steel sprocket, it ate a 1mm cut like it wasn't even there. The surface finish it left was nearly polished. I cranked it up to nearly 3mm thick cuts and it didn't even flinch. Highly recommended.

Awesome boring bar.

Good for light duty hobbiest taking light cuts. not rigid enough for deeper boring jobs or heavier cuts. fairly decent if you only need to bore about 2.5 3" deep.

Great service with very fast shipping. Appears to be a quality bar. Only issue would be using in a tool holder with a flat that the bar would sit on. This results in a 15 degree negative top angle. That’s too much for my lathe but I use it in a round tool block and can set whatever angle that my lathe likes

Buena herramienta

Muy bien la herramienta

It worked well as it should and kept the cost down on consumables for me

No me gustó porque no corta el acero la pastilla queda volando