Starrett 65621 Hole Saw 1-5/8 Inch Carbide Tipped

Product Description

The STARRETT 65621 is a carbide-tipped hole saw designed for cutting through hard and abrasive materials that would quickly wear down standard bi-metal blades. It features a 1-5/8 inch cutting diameter and a 1-5/8 inch cutting depth, making it suitable for through-cuts in panels, walls, and flooring assemblies. The toothed cutting edge follows a constant pitch pattern for consistent chip removal and reduced vibration during the cut. This hole saw is intended for use by HVAC technicians, electricians, plumbers, and general contractors who need reliable performance in demanding substrate materials.

The 65621 is suited for residential and light commercial applications where cutting through fiberglass, Formica, masonry brick, MDF, plaster, or suspended flooring is required. It is a non-arbored design, so a compatible arbor must be used separately. Typical use cases include cutting penetrations for conduit, pipe, duct, or electrical boxes through wall assemblies and finished surfaces where carbide durability is necessary.

Key Features

• Carbide-tipped cutting teeth for extended life in abrasive materials
• 1-5/8 inch saw diameter for standard penetration sizing
• 1-5/8 inch cutting depth accommodates typical panel and wall thicknesses
• Constant pitch tooth pattern for smooth, consistent cutting action
• Non-arbored design allows pairing with the appropriate arbor for the application
• Rated for fiberglass, Formica, masonry brick, MDF, plaster, and suspended floor materials

Compatibility

Designed for use with compatible hole saw arbors sold separately. Suitable for cutting fiberglass, Formica, masonry brick, MDF, plaster, and suspended floor assemblies in residential and commercial service work.

Installation Notes

This hole saw requires a separate compatible arbor before use in a drill or drill press. Always wear eye protection and appropriate PPE when cutting masonry or fiberglass materials, as these substrates generate fine, hazardous dust. Secure the workpiece before beginning the cut to prevent movement and blade binding. Follow applicable safety codes and tool manufacturer guidelines for speed settings based on the material being cut.