This was perfect for my application. I installed 3" recessed lights into the stucco ceiling. I installed about 8 spotlights and all cut out nice even circles with no wear. I didn't force it and let it cut at its own pace and it even went through the wire mesh that made a nice clean hole for me to install the can lamps in. I really wish it had a pilot crown but I cut a circle the same size out of a small piece of plywood with a woodcut hole saw and then used the plywood as a guide to holding this hole saw on target.Once the plaster was started it stayed in place and I didn't have to hold the plywood anymore and could keep cutting until the hole was done.Worked great would love to buy again