Hole Saw for Metal MODECO MN-61-427 Bi-metal 73 mm

Bi-metal hole saw MODECO MN-61-427 with a 73 mm cutting diameter is designed for creating circular openings in metal sheets and thin-walled metal assemblies. The tool combines two different steels to provide improved durability and heat resistance compared with standard high-speed steel (HSS), making it suitable for repetitive cutting tasks where prolonged tool life is required. It is intended for use with a compatible arbor and drill, enabling installation and maintenance operations involving pipes, conduits and fixtures.

Advantages

The bi-metal construction balances toughness and hardness to resist tooth breakage and wear while maintaining cutting performance on ferrous and some non-ferrous metals. The 73 mm diameter provides a common size for pipe and conduit penetrations, and the saw’s design allows efficient chip evacuation to reduce friction and heat buildup during cutting. Compatibility with standard arbors and drills simplifies integration into existing toolsets for professional and DIY applications.

Suitable for

• Cutting circular openings in steel and thin-walled metal panels
• Creating service penetrations for pipes and conduits
• Installing fixtures and mounting hardware in metal enclosures
• Maintenance and repair tasks requiring repetitive hole cutting

Key specifications

• Cutting diameter: 73 mm
• Material: bi-metal construction for improved wear and heat resistance
• Intended workpiece: metal sheets and thin-walled metal assemblies
• Compatibility: designed for use with compatible arbor and electric drill
• Application type: through-holes for pipes, conduits and fixtures

How to use

Mount the hole saw onto a compatible arbor according to the arbor manufacturer’s instructions and secure it in the drill chuck. Mark the center of the intended hole and use a pilot bit to start and stabilize the cut if the arbor includes one. Operate the drill at an appropriate speed for the metal being cut, apply steady axial pressure, and allow the saw teeth to remove material without forcing. Periodically withdraw the hole saw to clear chips and reduce overheating. After completing the cut, deburr the hole edges as needed to ensure a clean finish.

Usage recommendations

Use cutting lubricant or coolant when cutting thicker or harder metals to extend tool life and improve cutting performance. Observe recommended drill speeds for metalworking, avoid excessive feed force, and wear appropriate personal protective equipment such as safety glasses and gloves during operation.