Irwin IR373312BX Bi-metal Hole Saw 3.5 Inches

Product Description

The IRWIN IR373312BX is a bi-metal hole saw sized at 3.5 inches, built for cutting clean, precise holes through a range of common trade materials. Bi-metal construction combines a high-speed steel cutting edge with a flexible alloy steel body, delivering durability and resistance to tooth stripout during demanding cuts. This hole saw is a standard tool for electricians, plumbers, HVAC technicians, and general contractors who need consistent, repeatable hole sizing across multiple materials and work sites.

The IR373312BX is suited for residential and light commercial applications where a 3.5-inch hole is required. Common uses include cutting through wood framing, plywood, drywall, and thin metal sheet for pipe penetrations, conduit runs, recessed fixtures, and duct collar openings. Its 3.5-inch diameter aligns with typical trade penetration sizes used in plumbing rough-in and low-voltage wiring work.

Key Features

• Bi-metal construction for extended tooth life and resistance to breakage under load
• 3.5-inch cutting diameter for standard trade penetration applications
• Compatible with standard hole saw mandrels and arbors
• Sold individually, one saw per unit

Compatibility

Designed as a standard bi-metal hole saw for use with compatible mandrel and arbor assemblies commonly found in trade tool inventories. No specific system or model compatibility was stated in the product data.

Installation Notes

Hole saws of this type are installed by electricians, plumbers, and HVAC technicians using a standard drill or hole saw kit with a matching mandrel. Confirm arbor compatibility before use and secure the workpiece before cutting. When cutting through metal, use appropriate cutting fluid to reduce heat buildup and extend blade life. Follow applicable trade codes for penetration sealing and firestopping where required.

Technical Specifications

• Type: Bi-Metal Hole Saw
• Cutting Diameter: 3.5 inches
• Unit of Measure: Each
• Minimum Order Quantity: 1
• UPC: 024721001092

Standard Information

• Brand: IRWIN
• Manufacturer Part Number: IR373312BX