I could not use it. The kit did not include the drill needed for the pilot hole and there was no way to install one. Also needed an extension cord to connect a drill to it. I bought something else
Pros
MEET YOUR NEEDS: A great hole saw is suitable for drilling tile, concrete, brick, glass, marble, ceramic, etc. The hole opener can be used on bench drill, hand drill and machines with drill function, but cannot be used. used for impact drills