2-1/4" HOLE DOZER CARBIDE

What it is

• Brand: Milwaukee Tool
• Product line: HOLE DOZER™ Carbide Teeth
• Type: Carbide-tipped hole saw (not bi-metal)
• Model: 49-56-0724
• Function:
  • high-durability hole cutting for tough mixed materials
  • used in HVAC, plumbing, electrical rough-in work

Key specs

• Diameter: 2-1/4 inch
• Cutting depth: 1.62–1.625 inch
• Tooth design: Carbide (3 TPI)
• Thread: 5/8"-18 arbor system
• Shank compatibility: 7/16" hex / 3/8" variants depending on arbor
• Material capability:
  • stainless steel
  • cast iron
  • cement board
  • fastener-embedded wood
  • fiberglass & abrasives

Key features

• Carbide teeth = long life in abrasive/metal applications
• Faster cutting vs standard bi-metal HOLE DOZER
• Deep gullets for chip removal
• Plug ejection slots (“All-Access” style design)
• Designed for extreme-duty applications

Verified identifiers

• MPN: 49-56-0724
• UPC: 045242504169

Bottom line

• ✔ This is a carbide HOLE DOZER hole saw (premium tier)
• ✔ Sits above standard bi-metal DHS-style hole saws in durability
• ✔ Same ecosystem as your Milwaukee arbor system (49-56-70xx series)
• ✔ Common trade use for metal + mixed-material rough-in cuts

If you want next step, I can:

• map Milwaukee HOLE DOZER vs Diablo DHS compatibility (important differences)
• or merge your entire dataset into a clean master cross-brand inventory table (Milwaukee + Diablo + tools + fasteners all normalized)