Milwaukee 49-56-7240 Large Thread Quick Change Arbor

Product Description

The MILWAUKEE ELECTRIC TOOL CORP 49-56-7240 is a large-thread quick change arbor designed to speed up hole saw blade swaps on the jobsite. The 7/16-inch shank fits standard drill chucks and compatible quick-change systems, allowing the operator to release and seat hole saws without removing the arbor from the drill. This hardware is aimed at electricians, plumbers, HVAC technicians, and general contractors who run hole saws repeatedly throughout the workday and need fast, secure tool changes to maintain productivity.

The 49-56-7240 is suited for residential and light commercial applications where repeated hole saw use is common, including drilling through framing, drywall, subfloor, and sheet metal. It is sold in a package of five units, making it a practical restocking choice for service vans, tool cribs, or multi-tech shops. The large-thread designation matches it to correspondingly sized hole saw bodies requiring that thread specification.

Key Features

• Quick-change mechanism allows rapid hole saw removal and installation without a separate wrench
• Large thread configuration for compatibility with large-diameter hole saw bodies
• 7/16-inch shank fits standard drill chucks and compatible driver systems
• Sold in a package of 5 units for convenient bulk restocking
• Designed for high-repetition drilling tasks in trade and construction environments

Compatibility

Designed as an OEM-style arbor replacement for large-thread hole saws requiring a 7/16-inch shank interface. Verify thread size and shank specification against your existing hole saw bodies before installation.

Installation Notes

Installation is performed by hand-threading the arbor into the hole saw body until fully seated, then securing the assembly into the drill chuck. Confirm the chuck is tightened fully before operation and inspect the arbor threads for wear before each use. Discontinue use if threads show stripping or the quick-change mechanism does not engage positively.

Technical Specifications

• Shank Size: 7/16 inches
• Thread Size: Large
• Package Quantity: 5 units
• Unit of Measure: EA
• Weight: 4.8 pounds

Standard Information

• Brand: MILWAUKEE ELECTRIC TOOL CORP
• Manufacturer Part Number: 49-56-7240