My friend had a sherline. He used it mostly with aluminum and delrin. I. Ever saw him work a piece of steel with it other than drilling. Cute little bugger. Not to make the HF jealous, it is cute as well. If you are looking to mill steel, and expect good, repeatable results, the minimum is a big benchtop mill. I have a HF geared head mill that produces great results, but even at 800 lbs and everything locked down, I am limited to quite light cuts in steel and slow feed rates. The baby HF mill could not even come close to do what the gear head could do. I finally got tired of taking an hour to do a ten minute job and picked up a "small" knee mill.