Lenox 1773002 Hole Saw 4 in Bi-metal Variable Pitch

Product Description

The LENOX 1773002 is a bi-metal hole saw designed for cutting through metal in trade and industrial applications. It features a 4-inch saw diameter and a 1.5-inch cutting depth, making it well suited for electrical, plumbing, and HVAC rough-in work where clean, accurate holes are required. The toothed cutting edge uses a variable pitch pattern that reduces vibration and blade grab during cut progression. The arbored design accepts a standard 0.5-inch shank arbor, allowing fast chucking in most drill drivers and drill presses used on the job.

This hole saw is intended for cutting metal substrates in both residential and commercial service applications. Electricians, HVAC technicians, and plumbers commonly use this size when routing conduit, pipe, or refrigerant line sets through metal studs, panels, and junction boxes. The 4-inch diameter is a frequently specified size for larger conduit knockouts and pipe penetrations. The bi-metal construction handles the repeated stress of production-rate drilling without the early tooth fatigue seen in carbon-steel-only blades.

Key Features

• 4-inch saw diameter sized for large conduit and pipe penetrations
• 1.5-inch cutting depth accommodates standard metal panel and stud thicknesses
• Bi-metal construction for extended tooth life on metal substrates
• Variable pitch toothed edge reduces vibration and minimizes blade grab
• Arbored design with 0.5-inch shank diameter fits standard drill chucks

Compatibility

Designed as a standard arbored hole saw for use with compatible 0.5-inch shank arbors on drill drivers and drill presses; confirm arbor compatibility before use.

Installation Notes

Installation is performed by licensed electricians, HVAC technicians, or plumbers depending on the application. Secure the workpiece before drilling and ensure the drill is set to an appropriate speed for metal cutting. Always wear eye protection and appropriate PPE when operating hole saws on metal. Inspect the blade for cracked or missing teeth before each use and replace if damaged.