Review on Bonsicoky Bi Metal Drilling Recessed Fiberboard by William Rothstein

This is a Heavy Duty Hole Saw. I'm not sure I'll be using it on metal, but it's great for cutting wood and drywall to install recessed lights. Mine arrived with a broken racket due to packaging. No return as there were 2 spare parts in the kit. However, I want everything I paid for. so 3 stars