Drill bit (hole saw) MODECO MN-61-406 bi-metal 22 mm for metal

Bi-metal hole saw MODECO MN-61-406 with a 22 mm cutting diameter is designed for creating clean round holes in metal sheets and thin steel components. Made from bi-metal material, the saw combines toughness and cutting-edge flexibility to resist wear and tolerate the temperatures generated during drilling. The tool is intended for use with compatible drills and drivers in workshop, maintenance and metalworking tasks where a precise 22 mm opening is required.

Advantages

The bi-metal construction improves durability compared with high-speed steel alone, offering enhanced resistance to chipping and faster wear when cutting ferrous and non-ferrous metals. The 22 mm size provides a standardized opening for fittings and fasteners, while the saw’s tooth geometry is optimised for efficient chip evacuation and reduced heat buildup. The hole saw’s lightweight design makes it easy to handle and position during drilling operations.

Suitable for

• Cutting round holes in thin steel sheets and metal panels
• Installing cable glands, conduit fittings and small bushings
• Workshop maintenance and metalworking repair tasks
• Use with handheld and bench drills where a 22 mm hole is required

Key specifications

• Cutting diameter: 22 mm
• Material: bi-metal (high-speed steel edge bonded to flexible alloy)
• Intended material: steel and other metal sheets
• Compatible with: standard drill or driver arbors and quick-change mandrels where applicable
• Typical applications: hole cutting for fittings, cable entry and maintenance

How to use

Select a drill or driver that provides stable speed and adequate torque for metal cutting, and fit the hole saw to a compatible arbor or mandrel. Mark the centre of the required 22 mm hole and pilot with a centre punch if necessary for accurate positioning. Secure the workpiece to prevent movement, set the drill to an appropriate speed for metal, and apply steady, controlled pressure while drilling. Use coolant or cutting fluid intermittently to reduce heat and prolong tool life, and clear chips from the cutting area as needed.

Usage recommendations

To maximize lifetime and cutting quality, maintain moderate drilling speeds, use cutting fluid when working with thicker or tougher metals, and avoid excessive side loading. Inspect the teeth before use and replace the hole saw when wear or tooth damage affects cutting performance.