Milwaukee 49-56-0142 Bi-metal Hole Saw 2-3/8 Inches

Product Description

The Milwaukee Electric Tool Corp 49-56-0142 is a bi-metal hole saw designed for cutting clean, accurate holes in metal, wood, and plastic. Part of the HOLE DOZER line, this saw features a 2-3/8 inch cutting diameter suited to a wide range of trade applications. The bi-metal construction combines a high-speed steel cutting edge with an alloy steel body, delivering durability under the demanding conditions electricians, plumbers, and HVAC technicians encounter during rough-in work. It accepts standard arbor configurations compatible with most drill drivers and drill presses used in the field.

This hole saw is well-suited for residential and light commercial installation work where consistent hole sizing is required. Electricians use it for conduit and box knockouts, plumbers for pipe penetrations through framing and subfloor, and HVAC technicians for duct collars and refrigerant line penetrations. Its 2-3/8 inch diameter matches common trade rough-in requirements across these disciplines. Sold as an individual unit, it fits into standard hole saw kits and mandrel setups already on most service vehicles.

Key Features

• 2-3/8 inch cutting diameter for precise, repeatable hole sizing
• Bi-metal construction combines high-speed steel teeth with an alloy steel body for extended blade life
• Cuts metal, wood, and plastic — suitable for multi-trade rough-in applications
• Compatible with standard drill arbors and mandrels used with most drill drivers and drill presses
• Sold individually (unit of measure: EA) for easy single-piece replacement or stocking

Compatibility

Designed as an OEM-style replacement and standard-use bi-metal hole saw compatible with most drill drivers and drill presses accepting standard hole saw arbors and mandrels.

Installation Notes

Installation is performed by licensed electricians, plumbers, or HVAC technicians depending on the application. Ensure the drill or drill press is powered off and unplugged before mounting or removing the hole saw from the arbor. Use appropriate cutting fluid when sawing through metal to reduce heat buildup and extend blade life. Follow applicable codes such as the NEC, IPC, or IFGC for hole sizing and penetration requirements in your trade.

Technical Specifications

• Cutting Diameter: 2-3/8 inches
• Material: Bi-Metal (High-Speed Steel Teeth / Alloy Steel Body)
• Weight: 10.77 pounds
• Package Quantity: 24 EA

Standard Information

• Brand: Milwaukee Electric Tool Corp
• Manufacturer Part Number: 49-56-0142