Brüder Mannesmann M44220 Sierra de corona bimetálica 68 mm

For electricians, plumbers, and HVAC technicians who need clean, precise holes in wood, plastic, plasterboard, non-ferrous metals, and thin sheet metal, the Brüder Mannesmann M44220 bi-metal hole saw delivers fast, clean cuts with a 68 mm diameter. The variable tooth pitch and high-speed steel teeth cut efficiently while the special alloy steel body withstands heat and wear. With a maximum cutting depth of 38 mm and an M12 arbor connection, it is compatible with standard M12 arbors (not included) and works with both corded and cordless drills.

Key specifications

• Diameter: 68 mm
• Cutting depth: 38 mm
• Arbor connection: M12
• Tooth material: High-speed steel (HSS)
• Body material: Special alloy steel
• Tooth design: Variable pitch

Why choose it

The bi-metal construction combines hardened HSS teeth for sharpness and durability with a flexible alloy steel body that resists cracking under load. The variable tooth pitch reduces vibration and chatter, resulting in smoother holes and longer tool life. Suitable for a wide range of materials, this hole saw is a versatile addition to any professional toolkit.

Ideal use cases

• Drilling holes for pipes, cables, and conduits in walls and panels
• Creating openings for downlights in plasterboard ceilings
• Cutting holes in metal enclosures for connectors or switches
• Making holes in wooden structures for wiring or plumbing

Good to know

The hole saw requires an M12 arbor (not included) for mounting to a drill. Always use appropriate safety equipment and follow manufacturer guidelines for speed and feed rates based on the material being cut.