Lenox 1773004 Bi-metal Hole Saw 4.25 in Metal Cutting

Product Description

The LENOX 1773004 is a bi-metal hole saw designed for cutting through metal in demanding trade applications. With a 4.25-inch saw diameter and a 1.5-inch cutting depth, it handles pipe knockouts, conduit openings, and panel cutouts in sheet metal and light structural materials. The bi-metal construction pairs a high-speed steel cutting edge with a flexible alloy steel body, delivering durability under repeated use. A variable pitch tooth pattern reduces vibration and helps prevent tooth stripping on harder materials. The 0.5-inch arbored shank provides secure tool attachment and is compatible with standard 0.5-inch arbors.

This hole saw is suited for electricians, HVAC technicians, and plumbers who need clean, precise round cutouts in metal enclosures, junction boxes, ductwork, and piping layouts. The 4.25-inch diameter matches common 4-inch pipe tap requirements, making it a practical choice for cutting pipe entry openings in panels and brackets. It is packaged and sold as a single unit.

Key Features

• 4.25-inch saw diameter sized for 4-inch pipe tap compatibility
• 1.5-inch cutting depth handles standard panel and enclosure wall thicknesses
• Bi-metal construction combines high-speed steel teeth with a flexible alloy body for extended tool life
• Variable pitch tooth pattern reduces vibration and minimizes tooth stripping
• Arbored design with 0.5-inch shank for secure chuck or arbor attachment
• Toothed cutting edge for clean, burr-minimized round cutouts in metal

Compatibility

Designed for use with standard 0.5-inch arbors and compatible with applications requiring a 4-inch pipe tap opening. Suitable for cutting metal materials including sheet metal and light structural steel.

Installation Notes

Installation of this hole saw is typically performed by licensed electricians, HVAC technicians, or plumbers using a drill press or heavy-duty hand drill. Secure the workpiece before cutting and use appropriate cutting fluid on harder metals to extend saw life and improve cut quality. Always wear eye protection and ensure power tools are properly grounded per NEC guidelines. Inspect the saw teeth before each use and replace the saw if teeth are stripped or the body is cracked.