Greenlee 36506 Round Knockout Punch Unit, Standard Series

Greenlee 36506 Round Punch Unit, Standard Series

The Greenlee 36506 Round Punch Unit is part of Greenlee's Standard Series round knockout punch line, giving electricians and panel fabricators a fast, repeatable way to create clean round openings in enclosures and equipment. This round configuration is available across a range of diameters, from 30.5 mm up to 47 mm, so installers can match the punch to the connector or fitting size required on the job. Each unit in the series ships complete with punch, die, and draw stud, so it is ready to install into a pilot hole and drive with the operator's tool of choice. The round shape and Standard Series sizing make these units suited for standard fittings and connectors that require a precise, properly sized knockout, and the all-in-one design eliminates the guesswork of sourcing matching components separately.

Key Features

• Diameter Range: Available in round punch diameters from 30.5 mm to 47 mm for standard connector and fitting openings.
• Complete Unit: Includes punch, die, and draw stud in a single, ready-to-use assembly, so there is no need to match separate components.
• Round Configuration: Standard round shape produces clean, fast, and accurate holes when assembled through a properly sized pilot hole.
• Driver Versatility: Compatible with battery-powered, hydraulic, ratchet, or manual drivers, giving crews flexibility to use whatever tool is already on the truck.
• Multi-Material Punching: Rated to punch mild steel, aluminum, fiberglass, and plastic, covering the majority of enclosure and panel materials found in the field.
• Standard Series Design: Built to the Standard Series platform for consistent fit, finish, and performance across every diameter offered in the line.

Technical Specifications

• Shape: Round
• Series: Standard Series
• Diameter Range: 30.5 mm - 47 mm
• Country of Origin: United States

Typical Applications

• Electrical Panel and Enclosure Fabrication
• Round Knockout Installation for Connectors and Fittings
• Sheet Metal, Aluminum, Fiberglass, and Plastic Panel Work
• Commercial and Industrial Equipment Assembly
• Field Modification of Existing Enclosures

Why Greenlee?

Greenlee round punch units are engineered as complete, properly matched punch-and-die assemblies so installers get clean, accurate holes without sourcing mismatched parts. Manufactured in the United States and built to work across a wide range of drivers and materials, the Greenlee Standard Series round punch line, including the 36506, delivers the dependable, code-compliant results professional electrical crews rely on for panel and enclosure work regardless of which diameter in the range is selected.