High quality annual cutter. Works well with my entry level magnetic drill. I basically used this to cut stainless steel plates and it was fantastic. I always work much slower with core drills and I've found that using plenty of coolant helps cut stainless steel parts with ease. The item is nicely packaged and comes with a pilot needle. I've cut a lot of stainless steel so far and it's still very sharp with no signs of significant wear. It should be able to cut a full inch piece, I've only used 1/2 inch so far. It seems to be able to handle one inch thick chunks if you take your time and chill it.