Hole Dozer Bi-Metal General Purpose Hole Saw Set with PACKOUT Compact Organizer (10-Piece)The Milwaukee Hole Dozer Hole Saw features Rip Guard, the strongest tooth form in the industry, backed by the Rip Guard Limited Lifetime Tooth Break Warranty. Each tooth is built with more steel behind the cutting edge for added strength. The Rip Guard warranty on tooth breaks is a first for the hole saw industry. The added tooth strength along with 8% cobalt give added life to the teeth, allowing for increased productivity on the jobsite, as well as