I used this kit to rebuild a rocking chair that someone had cut out the rocker arms. It easily cut the new studs and the Forstner bit cut clean holes in the new rocker arms which I cut out. forgive tolerances. The set didn't fit super tight, but that was ok since I worked by hand. I filled the bottom of the holes with epoxy to seal them. The set allowed me to breathe new life into an old product!