49-56-0217 Milwaukee Tool 4-1/8" Hole Dozer Hole Saw Bi-Metal Cups

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49-56-0217 Milwaukee Tool 4-1/8" Hole Dozer Hole Saw Bi-Metal Cups

Features and Benefits:

• • Ice Hardened™ for up to 50% longer life than competition
  • Optimized tooth form for up to 2 times faster cutting
  • Functional slots for faster plug removal
  • Matrix II bi-metal teeth for greater durability

  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.

• RPM mild steel: 80
  RPM stainless steel: 40
  RPM cast iron: 55
  RPM aluminum: 120