There pretty simple to use. They are a combined unit that has a drill bit along with a cylindrical saw blade. The drill bit drills a small hole first and the hole saw then follows, with the drill bit still employed and acting as a guide. You use a regular power drill for it. Probably would need a 1/2" chuck and corded. Cordless likely would be too weak. Just be sure to be hanging on to it firmly when the saw blade bites. You could likely rent one and they could even explain to you how it works. I rented two hole saw bits and a 1/2" drill last month for a 1/2 day for about $15. There must be a tool rental place in FSJ, yes?
Hope this helps.
Cheers,
__________________
Mark.
|