Ergom N3W 25.5/M25 Manual Three-Point Punch

The Ergom N3W 25.5/M25 is a professional-grade manual three-point punch engineered for creating precise, clean holes in sheet metal. This specialized tool is specifically calibrated for M25 cable glands, making it an essential component for electrical installation projects where accuracy and material integrity are paramount. Its robust design allows for reliable performance in both demanding workshop environments and on-site field applications, ensuring consistent results without the need for external power sources.

Advantages

The primary benefit of the Ergom N3W punch is its three-point cutting geometry, which ensures that the hole is perfectly centered and free from jagged edges or burrs. This design significantly reduces the physical effort required by the operator while maintaining high precision throughout the punching process. The tool is constructed from high-quality materials that resist wear, providing a long service life even with frequent use. Furthermore, its compact and portable nature makes it an ideal solution for technicians who need to perform metalworking tasks in various locations without relying on heavy machinery.

Suitable for

• Electrical panel modifications
• Installation of M25 cable glands
• Sheet metal processing in workshops
• Field electrical installations

This tool may not be suitable for processing hardened steel, stainless steel of significant thickness, or non-metallic materials such as plastic or wood. It is specifically designed for standard sheet metal applications and may experience premature wear or failure if used on materials exceeding its intended hardness or thickness capacity.

Key specifications

• Punch diameter: 25.5 mm
• Compatibility: M25 cable glands
• Operation type: Manual
• Cutting mechanism: Three-point punch

To use the Ergom N3W, first mark the center point where the hole is required and drill a pilot hole of the appropriate diameter to accommodate the punch bolt. Insert the bolt through the pilot hole, attach the punch and die components on either side of the sheet metal, and tighten the nut manually or with a wrench. As the bolt is tightened, the punch will cleanly cut through the metal, creating a precise opening ready for the cable gland installation.

What to consider before purchase

• Verify the thickness of the sheet metal to ensure it falls within the tool's operational limits.
• Ensure the pilot hole diameter matches the requirements of the punch bolt.
• Consider the accessibility of the workspace, as manual operation requires sufficient clearance for the tool.

For optimal performance and tool longevity, ensure the cutting surfaces are kept clean and lightly lubricated. Always verify that the punch and die are correctly aligned before applying force to prevent damage to the tool or the workpiece.