Starrett 00454 Hole Saw 3.5 in Hss Variable Pitch

Product Description

The STARRETT 00454 is a high speed steel (HSS) hole saw rated for a 3.5-inch cut diameter and a 2-inch cutting depth. It uses a toothed edge with a variable pitch of 4 to 6 teeth per inch, which reduces harmonic vibration and helps prevent tooth stripping during aggressive cuts. This saw is suited for trades that regularly cut through metal, steel, and wood, including HVAC technicians cutting duct penetrations, electricians cutting knockout holes, and plumbers sizing pipe pass-through openings. The HSS construction handles the heat generated during repeated cuts better than carbon steel alternatives.

This hole saw fits common trade applications where a mid-size diameter opening is needed through sheet metal, light structural steel, or wood framing. Typical uses include cutting holes for conduit, pipe sleeves, duct connections, and access panels. At 2 inches of cutting depth, it handles most single-layer material thicknesses encountered in residential and light commercial service work. It is sold as a single saw body and requires a compatible arbor for use with a drill or drill press.

Key Features

• 3.5-inch saw diameter for mid-size penetration cuts in metal and wood
• 2-inch cutting depth accommodates most single-layer structural materials
• High speed steel construction resists heat buildup during extended use
• Variable pitch toothed edge (4 to 6 TPI) reduces vibration and tooth stripping
• Compatible with metal, steel, and wood material applications

Compatibility

Designed as a standard replacement-style hole saw body compatible with common arbor systems used in trade drill applications. Requires a separately sourced arbor sized to fit a 3.5-inch hole saw body.

Installation Notes

Installation is performed by licensed tradespeople including electricians, HVAC technicians, and plumbers using a standard drill or drill press with a compatible arbor. Secure the workpiece before cutting and wear eye and hand protection. Follow applicable codes such as NEC or IFGC when sizing penetrations through fire-rated or structural assemblies. Allow the saw body to cool between cuts to preserve tooth set and HSS temper.