Rittal AS4055.220 round sheet metal punch with a 20.4 mm cutting diameter for precise M20 enclosure cable entry openings.
£29.07
The Rittal AS4055.220 is a professional round sheet metal punch designed for creating accurate circular cut-outs in electrical enclosures, control cabinets and industrial panels. As part of the Rittal AS tooling range, this punch provides reliable performance for enclosure modification and cable entry preparation applications.
Designed for precise hole creation, the AS4055.220 produces clean round openings with consistent accuracy. It is ideal for electrical installers, panel builders and enclosure manufacturers who require dependable tooling for preparing cabinets and panels for cable glands and accessories.
With a 20.4 mm punch diameter, the Rittal AS4055.220 is suitable for preparing metric enclosure entries commonly used for M20 cable gland applications. It is designed for use with compatible Rittal punching systems and accessories.
Round sheet metal punches such as the Rittal AS4055.220 provide a reliable solution for producing accurate openings in electrical cabinets and enclosure panels. By creating consistent circular holes, they support professional installation of cable glands, connectors and enclosure accessories.
The Rittal AS tooling range is developed for industrial electricians, control panel manufacturers and machine builders who require accurate and repeatable enclosure preparation tools for automation and electrical installations.
| Manufacturer | Rittal |
|---|---|
| Model | AS4055.220 |
| Article number | AS 4055.220 |
| Product type | Round sheet metal punch |
| Punch shape | Round |
| Punch diameter | 20.4 mm |
| Application | Circular cut-outs for enclosure and panel work |
| Thread size | M20 |
| Tool range | Rittal AS punching system |
The Rittal AS4055.220 is used for creating accurate round cut-outs in electrical enclosures, control cabinets and sheet metal panels.
The Rittal AS4055.220 creates a round punched opening with a diameter of 20.4 mm.
Yes, the 20.4 mm punch diameter is suitable for preparing openings for M20 cable gland applications.
The punch is typically used by panel builders, electricians and machine builders for electrical enclosure and control cabinet preparation.
Yes, the Rittal AS4055.220 is designed as part of the Rittal AS tooling range for compatible punching applications.
Rittal AS tooling products are trusted by electrical installers and enclosure specialists worldwide for accurate, efficient and reliable modification of industrial control cabinets and electrical systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...