I was hoping to find a cheaper 1/8 2fl carbide end mill than the one I now use for cutting 1/8" and 3/16" brass. Unfortunately this is not the case. I couldn't find the speed and feed (including very slow for the test) that worked for this cutter. These end mills break in the flute, which is unusual. I don't want to give them a star because I'm pretty sure they're good for plastic, wood, maybe aluminum.