Milwaukee Tools 2-1/4 in. Ice Hardened™ Hole Saw #49-56-0132

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.

Features

Ice Hardened™ cryogenically treated for up to 50% longer life

Optimized tooth form for up to 2X faster cutting

Wide, angled & offset slots for easy plug access

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

Specifications

Hole Diameter 2-1/4 in.

RPM Mild Steel 150

RPM Stainless Steel 75

RPM Cast Iron 100

RPM Aluminum 225

Includes

(1) 2-1/4 in. Ice Hardened™ Hole Saw