Milwaukee 49-56-0112 Bi-metal Hole Saw 1-7/8 Inches

Product Description

The Milwaukee Electric Tool Corp 49-56-0112 is a 1-7/8 inch bi-metal hole saw engineered for general purpose cutting in metal and other common trade materials. The saw uses a 3.5 TPI tooth geometry designed to extend tooth life in metal applications. A thermoset coating on the blade body promotes faster cutting speeds and is optimized for cordless tool use, reducing heat buildup during the cut. All-access slots built into the body allow fast plug removal after each pass, reducing downtime between holes on the job. Electricians, plumbers, HVAC techs, and general contractors reach for this saw when running conduit knockouts, pipe penetrations, or duct openings.

The 49-56-0112 is suited for residential and light commercial trade work where repeated hole sawing through steel, aluminum, and mixed-material applications is required. The slot design provides increased pilot bit visibility for accurate placement and promotes faster chip ejection, keeping the cut cooler over extended use. The thermoset coating delivers up to 25 percent more holes per battery charge compared to uncoated designs, making it a practical choice for cordless-first job sites. It ships in a package quantity of 24 units per case, making it appropriate for restocking tool cribs or supply house distribution.

Key Features

• 3.5 TPI bi-metal tooth design for extended life in metal cutting applications
• Thermoset coating optimized for cordless tools, providing up to 25 percent more holes per charge
• All-access slots for fast plug removal and reduced downtime between holes
• Increased pilot bit visibility through improved slot geometry for accurate placement
• Faster chip ejection keeps the cut cooler during extended use
• Compatible with Arbor TV 138-923 and TV 139-793

Compatibility

Compatible with Arbor TV 138-923 and Arbor TV 139-793 as stated by the manufacturer.

Installation Notes

Installation is performed by electricians, plumbers, and HVAC technicians using a standard drill or hole saw arbor. Secure the workpiece before cutting and ensure the pilot bit is fully engaged before applying load. Wear appropriate eye and hand protection when cutting metal. Follow applicable NEC or IPC penetration and fire-blocking requirements when cutting through rated assemblies.

Technical Specifications

• Cutting Diameter: 1-7/8 inches
• Tooth Design: 3.5 TPI Bi-Metal
• Coating: Thermoset
• Compatible Arbors: TV 138-923, TV 139-793
• Package Quantity: 24 EA
• Weight: 6.94 pounds

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 49-56-0112