Milwaukee 49-56-0217 4-1/8-Inch Ice Hardened Hole Saw Milwaukee

4-1/8″, hole Dozer, hole saw, compatible with arbor TV #138-923 & TV #139-793. Made in the USA, 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 . Each tooth is built with more Steel behind the cutting edge for added strength. The rip guard 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 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. Rip guard, The strongest tooth Form in the industry rip guard limited lifetime tooth break Jack, an all access slot design for fast Plug removal Bi-Metal construction with 8% Cobalt for increased wear resistance Works with the following arbors: 49-56-7240, 49-56-7250, 49-56-9100, 49-56-7055, 49-56-7040, 49-56-7140 & 49-56-7150

Milwaukee Electric Tool Corporation introduces Ice Hardened hole saws, a new generation of hole saws that offer up to 50% longer life than the competition and are ideal for metal and wood cutting in a wide variety of HVAC, electrical, plumbing and maintenance/repair applications. Milwaukee Ice Hardened products utilize a proprietary cryogenic hardening process that improves upon traditional heat treat processes. Unlike surface coatings that wear away, cryogenics harden to the core by minimizing soft metal (austenite) and creating more hard metal (martensite). The result is a product that is more consistently hard throughout, resulting in life up to 50% longer than the competition. Milwaukee Ice Hardened hole saws also feature Matrix II bi-metal construction for greater durability and a unique precision-ground tooth geometry for faster cutting. A positive rake angle cuts more aggressively while deeper gullets quickly remove chips. A radiused back face reduces stress on the teeth, ensuring that the blade delivers optimum life and speed. Functional slot geometry allows for a standard slotted screwdriver to fit completely underneath the plug for easier plug removal.