The Milwaukee Hole Dozer Hole Saw features Rip Guard, the strongest tooth form in the industry, backed. Each tooth is built with more steel behind the cutting edge for added strength. The added tooth strength along with 8 percent cobalt give added life to the teeth, allowing for increased productivity on the jobsite, as well as continued hole quality. The Hole Dozer includes Plug Jack, an all access slot design that allows for full access during plug removal. The Plug Jack gives 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 increases productivity and eliminates wasted downtime between holes. For fast, tool-free change-outs, use Milwaukee's universal quick-change arbors. 49-56-7210, 49-56-7240, 49-56-7250 and 49-56-9100. Rip Guard - the strongest tooth form in the industryLimited lifetime tooth break warranty8% cobalt construction for increased wear resistancePlug Jack - an all access slot design for fast plug removalFeatures rip guard teeth - teeth with more steel behind the cutting edge for added durabilityEquipped with plug jack - an all-access slot design for fast plug removalFeatures bi-metal constructionCoated with a low friction, thermoset paint that provides faster cutting speed in wood and more holes cut per battery chargeMade in the USA