Starrett 65634 Hole Saw 3-1/2 in Carbide Tipped

Product Description

The STARRETT 65634 is a carbide-tipped hole saw designed for cutting clean, accurate holes through tough materials. With a 3-1/2 inch diameter and a 1-5/8 inch cutting depth, it handles a wide range of trade applications where standard bi-metal saws fall short. The toothed cutting edge runs at a constant pitch for consistent chip removal. It is a non-arbored design, meaning the appropriate arbor must be sourced separately. HVAC installers, plumbers, and general contractors reach for this saw when working through dense substrates that would quickly wear down lesser tooling.

This hole saw is suited for trade work involving fiberglass panels, Formica laminate, masonry brick, MDF, plaster, and suspended flooring. Common applications include cutting penetrations for duct collars, pipe sleeves, electrical boxes, and drain rough-ins. The 3-1/2 inch diameter is a standard size for many duct and pipe openings in both residential and light commercial installations. The 1-5/8 inch cutting depth accommodates most wall, ceiling, and floor panel thicknesses encountered in typical service and new-construction work.

Key Features

• Carbide-tipped cutting teeth for extended life in hard and abrasive materials
• 3-1/2 inch saw diameter — standard size for duct collars, pipe sleeves, and electrical openings
• 1-5/8 inch cutting depth handles standard panel and framing material thicknesses
• Constant-pitch toothed edge promotes consistent cutting and chip evacuation
• Non-arbored design allows use with a separately selected compatible arbor
• Rated for fiberglass, Formica, masonry brick, MDF, plaster, and suspended floor materials

Compatibility

Designed for use in fiberglass, Formica, masonry brick, MDF, plaster, and suspended floor applications. Requires a separately purchased arbor compatible with standard hole saw shanks. Not intended for metal or wood-only hole saw arbor kits without confirming arbor fitment.

Installation Notes

This hole saw is installed and operated by HVAC technicians, plumbers, electricians, and general contractors using a standard drill or drill press. Confirm the correct arbor is fitted and secured before operation. Wear appropriate eye and respiratory protection when cutting masonry, fiberglass, or MDF, as these materials produce fine particulate. Follow applicable safety codes and manufacturer drill speed recommendations for the material being cut.