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Greenlee 7211EBB-204 Slug-Buster® Metric Punch Unit, 20.4 mm
The Greenlee 7211EBB-204 Slug-Buster® Metric Punch Unit is a 20.4 mm round knockout punch engineered for use with battery-powered, hydraulic, ratchet, or manual drivers. This punch is part of Greenlee's Slug-Buster® line, the contractor's choice worldwide, and uses standard Greenlee dies and draw studs so it drops right into an existing Greenlee tooling setup. Its unique punch profile splits the slug during the punching operation, making slug removal faster and easier on the job site. Slug-Buster® punches in this family are available in sizes up through 2.52 IN (64.0 mm), giving electricians and panel builders a consistent, compatible sizing system for round knockouts across a wide range of enclosure and panel applications.
Key Features
- Trade Size: 20.4 mm round punch for precise metric knockout sizing.
- Slug-Splitting Design: Unique punch profile splits slugs for easier, faster removal after punching.
- Universal Driver Compatibility: Works with battery-powered, hydraulic, ratchet, or manual drivers for flexibility across job sites.
- Standard Tooling Compatibility: Uses standard Greenlee dies and draw studs, simplifying inventory and tooling changeovers.
- Patented Design: Covered by U.S. Patent #4,543,722 for the Slug-Buster® slug-splitting technology.
- Size Range Compatibility: Part of a Slug-Buster® family available in sizes up through 2.52 IN (64.0 mm).
- Shape: Round profile for standard round knockout applications.
Technical Specifications
- Country of Origin: United States
- Size: 20.4 mm
- Type: Slug-Buster® Metric Punch Unit
- Sub Brand: Slug-Buster®
- Shape: Round
Typical Applications
- Punching Round Knockouts in Electrical Enclosures and Panels
- Metric Conduit and Cable Entry Preparation
- Field Installations Requiring Battery-Powered or Hydraulic Drivers
- Panel Shop and Enclosure Manufacturing
- Maintenance and Retrofit Electrical Work
Why Greenlee?
Greenlee's Slug-Buster® punch units are trusted by contractors worldwide for their patented slug-splitting design and broad compatibility with standard Greenlee dies, draw studs, and driver types. Manufactured in the United States, this 20.4 mm round punch unit delivers the fit, function, and reliability electricians expect from Greenlee tooling on every job.
Manufacturer Resources
Product Specs
- list_batch:
- GREE-20260923
- Product Type:
- Punch Unit
- Configuration:
- Round
- Series:
- Slug-Buster
- Country of Origin:
- United States
- Department:
- Electrical
- Product Subgroup:
- Knockout Punches
- Product Material:
- Steel
- Product Size:
- 20.4 mm