findmall 9pcs 2″ Boring Head R8 Shank Boring Tool Set 1/2″ Carbide Boring Bar Set Milling Fit for Milling Machine

I am not a machinist. I play around at home with lathe and cheap mill. I bought this to bore a hole in a pitman arm at 2.100″. It worked great and left an accurate and uniform hole. I’m sure there is much better out there, but I’m not making airplane parts either. The cutters did need sharpening and aren’t the best, but they work. The head itself is surprisingly well made for the price. Seemed to pretty accurate to the .001″. Again, I don’t doubt a professional would think otherwise, but I’m sure their parts also cost much more than this thing. I would buy it again and it has made it’s money back already!