Greenlee 440AV Round Conduit D...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$51.67
Greenlee 440AV Round Conduit Die, 49.5 mm Knockout Punch

Greenlee 440AV Round Conduit Die, 49.5 mm Knockout Punch

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Model: 128AV

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

$51.67
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Greenlee Round Conduit Die 43.2mm for 1-1/4" Standard Knockout Punches

Professional Replacement Die for Standard Round Knockout Applications

The Greenlee Round Conduit Die delivers precise 43.2mm hole cutting performance for 1-1/4" conduit installations. This replacement die features catalog number and size markings for quick identification, alignment markings for improved accuracy, and Made in USA construction. Compatible with battery-powered, hydraulic, ratchet or manual drivers, this die handles up to 10 gauge mild steel and works effectively on mild steel, aluminum, fiberglass and plastic materials.

Professional Features & Benefits

  • 43.2mm Precision Sizing: Creates exact 1-11/16" holes for proper 1-1/4" conduit fit and professional installations
  • Catalog Number Markings: Quick part identification reduces setup time and ensures correct die selection
  • Alignment Markings: Improve punching accuracy and productivity when making holes for consistent results
  • 10 Gauge Steel Capacity: Handles demanding applications on mild steel up to 10 gauge thickness
  • Multi-Material Compatibility: Works on mild steel, aluminum, fiberglass and plastic for versatile job site applications
  • Made in USA: Domestic manufacturing ensures consistent quality and reliable performance standards
  • Universal Driver Compatibility: Works with battery-powered, hydraulic, ratchet or manual drivers for flexible operation

Technical Specifications

  • Country Of Origin: United States
  • Product Shape: Round
  • Product Size: Replacement Die for 2-1/4 In Standard Round Knockout
  • Product Type: Replacement Die for standard round knockout punches

Installation & Operation

  1. Mount the die in a suitable knockout punch driver with appropriate clearance and access for connections and service.
  2. Connect the die to your battery-powered, hydraulic, ratchet or manual driver following applicable guidelines and the manufacturer's instructions.
  3. Position the die according to alignment markings for accurate hole placement on the target material.
  4. Configure the driver settings as supported by the material thickness and type specifications.
  5. Test the punching operation on a sample piece and verify proper 43.2mm hole diameter before placing into service.
  6. Complete final inspection and follow ongoing maintenance practices appropriate to knockout punch dies.

Professional Applications

  • Electrical Conduit Installation
  • Commercial Electrical Work
  • Industrial Panel Fabrication
  • Professional Electrical Contracting
  • Maintenance and Repair Operations
  • Multi-Material Fabrication Projects

Why Choose Greenlee Quality?

Greenlee delivers professional-grade reliability with Made in USA construction and precision engineering. The catalog number markings and alignment features demonstrate attention to contractor productivity, while the multi-material compatibility and 10 gauge steel capacity ensure versatile performance across demanding electrical applications.

Manufacturer Resources

Spec Sheet

Product Specs

Department:
Electrical
Product Type:
Replacement Die for standard round knockout punches
Product Subgroup:
Tool Replacement Parts

Greenlee 128AV – Frequently Asked Questions

1) Which knockout die do I order for 1-1/4 inch conduit versus 1-1/2 inch conduit?
Two sizes are offered on the Greenlee round conduit die: order part number 128AV for the 1-1/4 inch size and 440AV for the 1-1/2 inch size. The size and catalog number are marked right on the die, so once it is in the box with the rest of your set you can pick the right one without measuring.
2) Will this Greenlee round conduit die work with my battery-powered knockout tool, or do I need a hydraulic ram?
Either works. The die is built for standard round knockout punching and runs off battery-powered, hydraulic, ratchet or manual drivers, so you can put the same die on a cordless punch tool in the field and a hand ratchet driver in the shop.
3) What is the thickest steel panel I can punch with a Greenlee standard round knockout die?
Capacity is 10 gauge mild steel. That covers typical enclosure and panel work, but it is the ceiling, so heavier plate than 10 gauge needs a different cutting method. The die also punches aluminum, fiberglass and plastic.
4) Is this a complete knockout punch or just the replacement die?
It is the replacement die only, for standard round knockout punches. You mount it in a driver you already own. If you do not have a punch driver and draw stud setup, you will need that separately before this die is usable.
5) What size hole does the 1-1/4 inch Greenlee conduit die actually cut?
The 1-1/4 inch die (128AV) cuts a 43.2 mm hole, which is 1-11/16 inches. Conduit knockout dies are sized by the trade size of the conduit, not the hole, so the finished opening is always larger than the nominal 1-1/4 inch.
6) Can I punch a hole in a fiberglass or plastic enclosure with a Greenlee round knockout die?
Yes. Alongside mild steel and aluminum, the die is rated for fiberglass and plastic, so it handles non-metallic enclosures as well as sheet metal panels. Run a test punch on scrap of the same material first to confirm the hole comes out clean.
7) Is the Greenlee conduit die made in the USA for jobs with domestic sourcing requirements?
Country of origin is the United States. That matters on public and institutional work where domestic content has to be documented for the tool and material submittals.
8) How do I keep knockout holes lined up where they need to be on a panel?
The die carries alignment markings on its face. You lay the die to those marks over your layout line before drawing it through, which keeps a row of conduit entries on the same centerline instead of wandering. Punch a sample piece first to confirm placement before you commit on a finished enclosure.
How fast can I get the Greenlee 128AV 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 128AV come with a warranty?
Absolutely. The Greenlee 128AV 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 128AV?
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 128AV 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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