I'm partial to the A.R. Warner HSS cutting tools for my Craftsman/Atlas lathe. It's way to flimsy and underpowered to benefit from carbide cutters. As others have pointed out. Nice thing about the ARW tools is, the convenience of replaceable cutters, with the user friendliness of HSS.

http://littlemachineshop.com/products/brands.php?brand=A+R+Warner

Jeff