power saws
milwaukee electric tools 495 49 56 0072 ice hardened hole saw 1 . 38 inch
includes 1 1 3 8 ice hardened hole saw features ice hardened cryogenically treated for up to 50 % longer life optimized tooth form for up to 2x faster cutting wide angled and 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 and 49 56 7150 specifications hole diameter 1 3 8 rpm mild steel 250 rpm stainless steel 125 rpm cast iron 165 rpm aluminum 375 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 sku orsno64490
milwaukee electric tools