Bi-metal hole saw Irwin IRWIN 29 mm

The Bi-metal hole saw Irwin IRWIN 29 mm is designed to cut precise circular openings with a diameter of 29 mm in a wide range of materials. Constructed from bi-metal, this hole saw combines flexibility and hardened cutting teeth to provide improved resistance to wear and higher heat tolerance compared with standard carbon steel saws. It is compatible with handheld drills and drill presses and is intended for tasks where a consistent, accurate 29 mm hole is required.

Advantages

This bi-metal hole saw offers extended service life due to its combination of high-speed steel cutting teeth and flexible alloy backing. The design reduces the risk of tooth breakage and maintains cutting performance under higher temperatures. The saw produces clean, accurate cuts and is suitable for repeated use in both professional and DIY environments. Compatibility with standard arbors makes it straightforward to attach to most drilling equipment.

Suitable for

• Cutting holes for pipes and conduits
• Creating openings for cables and cable glands
• Installing light fixtures and electrical boxes
• Making precise holes in sheet metal, wood, and some plastics

Key specifications

• Diameter: 29 mm
• Material: bi-metal construction (high-speed steel teeth bonded to flexible alloy base)
• Intended use: drill and drill-press compatible hole saw for circular cuts
• Cut quality: designed for clean, accurate holes with improved wear resistance
• Operating conditions: suitable for higher temperature cutting compared with carbon steel alternatives

How to use

Select an appropriate arbor for your drill or drill press and securely fasten the hole saw to the arbor according to the arbor manufacturer’s instructions. Mark the center of the intended 29 mm hole and, if possible, pilot-drill a guide hole to position the saw accurately. Operate the drill at a steady speed appropriate for the material being cut, applying moderate pressure to allow the bi-metal teeth to cut efficiently. Periodically withdraw the saw to clear chips and avoid overheating; use cutting lubricant when cutting metal materials to extend blade life and improve cut quality.

Usage recommendations

For best results, use the hole saw with a suitable arbor and pilot bit, maintain steady feed rates, and apply cutting fluid when working with metals. Inspect the saw for wear before use and replace it when cutting performance degrades to maintain safety and hole accuracy.