The 3/4 Inch CNC Lathe External Turning Tool Holder MSSNR2020K12 with 2 Indexable Carbide Inserts SNMG431 for Turning Yellow-Processed Steel and Fuchsia-Processed Stainless Steel is hands down the best turning tool I have ever used. The tool holder itself is sturdy and solid, allowing for precision cuts without any wobbling or shaking. The two indexable carbide inserts are a dream to work with, and make cutting through even the toughest materials a breeze. I was particularly impressed with how well this tool worked on yellow-processed steel and fuchsia-processed stainless steel. I have struggled with finding a tool that could handle these materials without damaging them in the past, but this tool holder and inserts worked like a charm. It made clean cuts and left a smooth finish on each piece I worked on. Overall, I am absolutely thrilled with the 3/4 Inch CNC Lathe External Turning Tool Holder MSSNR2020K12 with 2 Indexable Carbide Inserts SNMG431 for Turning Yellow-Processed Steel and Fuchsia-Processed Stainless Steel. It has become my go-to tool for turning work and I would highly recommend it to anyone in the industry. 5 stars out of 5!