Bi-metal hole saw for metal MODECO MN-61-408 25 mm

Bi-metal hole saw MODECO MN-61-408 with a 25 mm cutting diameter is designed for creating clean circular holes in a range of ferrous and non-ferrous metals. The tool combines a high-speed steel cutting edge with a flexible backing steel body to balance toughness and resistance to wear, allowing efficient cutting in sheet metal, thin plate and similar materials. It is intended for use with hand drills and drill presses and is suitable for professional and workshop environments where precise hole diameters are required.

Advantages

The bi-metal construction provides a durable cutting edge that withstands higher temperatures and prolonged use compared with standard carbon-steel hole saws. The 25 mm diameter delivers consistent, repeatable hole size for installation tasks and mechanical work. Compatibility with common drill arbors and the saw's design reduce the risk of tooth breakage and improve chip evacuation, which maintains cutting speed and extends service life.

Suitable for

• Drilling holes for pipes and conduits in metal panels
• Installing fasteners, grommets and bushings in sheet metal
• Creating access holes for wiring and cable routing
• General workshop metalworking and maintenance tasks

Key specifications

• Cutting diameter: 25 mm
• Material: bi-metal construction (high-speed steel cutting edge with alloy steel body)
• Compatible with: standard drill chucks and drill press arbors
• Recommended use: thin to medium-thickness metal sheets and plates

How to use

Secure the hole saw onto a compatible arbor and install it into a drill or drill press. Mark the centre point of the desired hole and, if possible, use a centre punch to prevent wandering. Begin drilling at low speed to establish the pilot position, then increase speed as appropriate for the material thickness and drill capacity. Apply steady, moderate pressure and allow the saw to cut without forcing; pause periodically to clear chips and prevent overheating. Use cutting fluid when working with thicker or tougher metals to improve tool life and cut quality.

Usage recommendations

For best results, match drill speed and feed to the metal type and thickness, use appropriate lubricants, and inspect the saw teeth regularly. Replace the hole saw if teeth show significant wear or damage to maintain hole accuracy and safe operation.