Greenlee 36506 Round Knockout ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$123.59
Greenlee 36506 Round Knockout Punch Unit, Standard Series

Greenlee 36506 Round Knockout Punch Unit, Standard Series

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Model: 36506

In Stock (leaves warehouse same day if ordered before 3pm ET)

$123.59
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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.

Manufacturer Resources

Product Specs

list_batch:
GREE-20260923
Product Type:
Knockout Punch
Configuration:
Round
Country Of Origin:
United States
Department:
Electrical
Product Subgroup:
Knockout Punches
Product Size:
30.5 mm - 47 mm
Series:
Standard Series
Product Group:
Electrical Installation Tools

Greenlee 36506 – Frequently Asked Questions

1) What comes in the Greenlee 36506 round knockout punch unit?
The 36506 ships as a complete unit: punch, die, and draw stud together. You don't have to match a die to a punch or source a stud separately. Drill or step your pilot hole, pass the draw stud through, thread on the punch and die, and pull. The only thing you add is the driver.
2) Will a Greenlee round punch unit work with my battery hydraulic knockout driver, or do I need a ratchet?
Either works. The Standard Series round units are made to drive with battery powered, hydraulic, ratchet, or manual drivers, so whatever knockout tool is already on the truck will pull them. Confirm your driver's draw stud thread matches the stud supplied with the unit before you set up.
3) Is the Greenlee Standard Series round punch a square or round knockout?
Round only. The 36506 line is a round configuration for standard circular connectors and fittings. If you need a square or rectangular opening for a device box, a receptacle plate, or a panel cutout, a round punch unit won't do it, you need a square punch unit.
4) Can these Greenlee punches cut aluminum and fiberglass enclosures, or only steel?
Mild steel, aluminum, fiberglass, and plastic are all covered, which takes in most panel and enclosure material you meet in the field. For stainless or anything heavier than mild steel, you want a punch rated for that material instead.
5) Do I need to drill a pilot hole before using a Greenlee 36506 knockout punch?
Yes. These round units assemble through a pilot hole sized for the draw stud, so the hole has to be drilled or stepped first. The draw stud passes through it, the die sits on one face and the punch on the other, and the driver pulls them together to shear the slug.
6) Are Greenlee knockout punch units made in the USA?
Yes, the Standard Series round punch units are manufactured in the United States. That matters on public and institutional work where domestic sourcing is written into the spec.
7) Can I buy just the die or just the draw stud for a Greenlee round punch?
The 36506 and the 47 mm 730EBB-47.0 are sold as complete matched assemblies, punch, die, and draw stud together. If you've worn or lost one piece, you're ordering the full unit for that diameter rather than a loose component.
How fast can I get the Greenlee 36506 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Greenlee 36506 come with a warranty?
Absolutely. The Greenlee 36506 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Greenlee 36506?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Greenlee 36506 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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