Irwin 373112BX Bi-metal Hole Saw 1-1/2 Inches

Product Description

The IRWIN 373112BX is a bi-metal hole saw designed for cutting through a range of materials encountered in trade work, including wood, aluminum, copper, iron, stainless steel, and zinc. The 1-1/2-inch diameter cutting size makes it a common choice for drilling access holes in framing, sheet metal, and pipe work. Bi-metal construction combines a high-speed steel tooth edge with a flexible alloy steel body, giving the blade resistance to both wear and breakage under load. Electricians, plumbers, and HVAC technicians reach for this saw when making clean, repeatable holes in mixed-material installations. Rated at 230 RPM for optimal cutting speed.

This hole saw is suited for residential and light commercial applications where a consistent 1-1/2-inch hole diameter is required. Typical uses include conduit entry points, pipe penetrations through framing members, and fixture cutouts in sheet metal panels. The bi-metal tooth geometry handles both soft and hard materials without requiring a saw change between tasks, reducing time on multi-material jobs.

Key Features

• 1-1/2-inch cutting diameter for standard trade hole-making tasks
• Bi-metal construction with high-speed steel teeth for extended tooth life
• Cuts wood, aluminum, copper, iron, stainless steel, and zinc
• Rated at 230 RPM recommended operating speed
• Sold individually (each)

Compatibility

Designed for use with standard arbors that accept bi-metal hole saws with a 1-1/2-inch diameter. Compatible with most drill presses and handheld drills fitted with an appropriate hole saw arbor.

Installation Notes

Install the hole saw onto a compatible arbor and confirm the arbor set screw is fully tightened before use. Ensure the drill or press is set to the appropriate speed for the material being cut; harder materials such as stainless steel require slower speeds and cutting fluid to prevent tooth damage. Always secure the workpiece before drilling and wear appropriate eye protection. Electricians and plumbers should verify that no energized conductors or pressurized lines are present behind the work surface before cutting.

Technical Specifications

• Cutting Diameter: 1-1/2 inches
• Recommended Speed: 230 RPM
• Tooth Material: Bi-metal (high-speed steel teeth)
• Compatible Materials: Wood, aluminum, copper, iron, stainless steel, zinc
• Weight: 0.15 pounds
• UPC: 024721000286

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: 373112BX