PART NO. MET49560047 Milwaukee 49-56-0047, Hole Dozer Bi-Metal Hole Saw, 1-1/16" Dia.. Made in the USA, the Milwaukee® Hole DozerTM Hole Saw features Rip GuardTM, the strongest tooth form in the industry, backed by the Rip GuardTM Limited Lifetime Tooth Break Warranty. Each tooth is built with more steel behind the cutting edge for added strength. The Rip GuardTM 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 continued hole quality. The Hole DozerTM includes Plug JackTM, an all access slot design that allows for full access during plug removal.