Milwaukee Tool 49-56-9685 Bi-metal Hole Saw 4 in

Product Description

The MILWAUKEE TOOL 49-56-9685 is a bi-metal hole saw designed for cutting through metals and a range of other materials encountered in commercial and residential trade work. With a 4-inch saw diameter and a cutting depth of 1-5/8 inches, this hole saw handles standard rough-in and penetration tasks without requiring multiple passes on typical material thicknesses. The toothed cutting edge is formed from bi-metal construction, combining a high-speed steel tooth strip with an alloy steel body for durability under repeated use. It ships as a single unit and includes the hole saw body ready for arbor mounting.

This hole saw is suited for electricians, plumbers, and HVAC technicians cutting holes through sheet metal, steel studs, electrical enclosures, and similar metal substrates. It fits common install scenarios such as running conduit, making panel knockouts, or creating pipe penetrations through light-gauge metal framing. The 3/8-inch shank diameter is compatible with standard arbors used across most drill and driver setups on the job site. The arbored design allows fast bit changes during production work.

Key Features

• Bi-metal construction combines high-speed steel teeth with an alloy body for extended cutting life
• 4-inch saw diameter suits standard pipe, conduit, and knockout applications
• 1-5/8-inch cutting depth handles typical metal panel and light structural material thicknesses
• Toothed cutting edge for clean, controlled cuts in metal substrates
• 3/8-inch shank diameter fits standard arbors for quick setup
• Arbored design for compatibility with common drill chuck configurations

Compatibility

Designed as an OEM-style replacement and standard-fit hole saw for use with 3/8-inch arbor systems on professional drill drivers and drill presses used in electrical, plumbing, and HVAC trade applications.

Installation Notes

Installation should be performed by a qualified tradesperson familiar with rotary cutting tools and applicable safety practices. Secure the workpiece fully before cutting and wear appropriate eye and hand protection. Confirm the arbor pilot bit is properly seated and locked before operating. Allow the saw to cool between cuts when working through heavy-gauge metal to preserve tooth life.