The Milwaukee Hole Dozer Bi-Metal Hole Saw features Rip Guard, an exceptionally strong tooth form backed by the Rip Guard Limited Lifetime Tooth Break Warranty. Each tooth is built with extra steel behind the cutting edge for added strength. This enhanced strength along with 8% cobalt help extend the life of the teeth, allowing for increased productivity on the job site as well as continued hole quality. The Hole Dozer also includes Plug Jack, an all-access slot design that allows for full access during plug removal. This provides access lower into the cup for thick material and higher towards the teeth for thin material. With multiple positions to apply leverage and better plug access, Plug Jack improves productivity and eliminates wasted downtime between holes.