Review on MK Morse AT18 Diameter Carbide by Pete Brown

I cut 18 holes for recessed lighting in 1950's plaster ceilings. On the 18th hole, this saw didn't cut as well as the first hole. When I started this project, I knew it wasn't the right tool for the job. A suitable tool is a hard metal sand hole saw, which, however, is almost twice as expensive. Since this is a one-off job, the carbide tip did the job. It worked as expected.