Greenlee 52078281 Quick Change...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$689.86
$639.86
Greenlee 52078281 QUICK CHANGE CARBIDE CUTTER KIT, 8PC

Greenlee 52078281 Quick Change Carbide Cutter Kit, 8-Piece, Tungsten Carbide

(No reviews yet) Write a Review

Model: 52078281
Selected Model is

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

$689.86
$639.86
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Greenlee 52078281 Quick Change Carbide Cutter Kit, 8-Piece, Tungsten Carbide

The Greenlee 52078281 Quick Change Carbide Cutter Kit is an 8-piece set of tungsten carbide-tipped hole cutters engineered for fast, clean cutting through electrical panels, boxes, and enclosures. Each cutter features tungsten carbide teeth for extended cutting life and a maximum cutting depth of 3/16'' (4.8MM). The kit covers six hole sizes — 7/8'', 1-1/8'', 1-3/8'', 1-3/4'', 2'', and 2-1/2'' — giving electricians and installers the range needed for a wide variety of conduit and fitting knockouts on the job site. With dual shank sizes across the kit, these cutters fit multiple drill chucks, and the compact kit footprint keeps the full assortment organized and ready for transport between job sites.

Key Features

  • Cutting Edge: Tungsten carbide teeth deliver durable, long-lasting performance on repeated cuts through metal enclosures.
  • Hole Sizes: 6 sizes included — 7/8'', 1-1/8'', 1-3/8'', 1-3/4'', 2'', and 2-1/2'' — covering common conduit and fitting hole requirements.
  • Maximum Cutting Depth: 3/16'' (4.8MM), suited for standard-gauge electrical panel and box material.
  • Shank Sizes: 645-011 cutters use a 3/8'' (9.5mm) shank while 645-022 cutters use a 7/16'' (11.1MM) shank for compatible drill chucks.
  • Quick Change Design: Kit configuration allows fast swaps between cutter sizes to speed up multi-hole installation work.
  • Compact Kit Footprint: Product dimensions of 9.600 IN length x 5.900 IN width x 2.200 IN height keep the set organized and portable at 2.73 LB.
  • 8-Piece Set: Full kit of carbide cutters covers a broad range of hole sizes without requiring separate single-cutter purchases.

Technical Specifications

  • Country Of Origin: CN
  • Cutting Edge: Tungsten Carbide Teeth
  • Hole Size: 6 sizes: 7/8'', 1-1/8'', 1-3/8'', 1-3/4'', 2'', 2-1/2''
  • Maximum Cutting Depth: 3/16'' (4.8MM)
  • Product Height: 2.200 IN
  • Product Length: 9.600 IN
  • Product Type: Quick Change Carbide Cutter Set
  • Product Width: 5.900 IN
  • Shank Size: 645-011: 3/8'' (9.5mm) 645-022: 7/16'' (11.1MM)
  • Weight: 2.73 LB

Typical Applications

  • Cutting Holes in Electrical Panels and Enclosures
  • Conduit and Fitting Knockout Preparation
  • Commercial and Industrial Electrical Installations
  • Panelboard and Junction Box Fabrication
  • New Construction and Retrofit Electrical Work

Why Greenlee?

Greenlee builds this 8-piece cutter kit around tungsten carbide teeth for durable, repeatable cutting performance, with a full range of six hole sizes and dual shank options to fit multiple drill chucks. It's an organized, purpose-built kit for electricians who need reliable hole-cutting capability across a range of conduit and enclosure sizes on the job, backed by construction designed to hold up to repeated use on standard-gauge panel and box material.

Manufacturer Resources

Spec Sheet

Product Specs

Cutting Edge:
Tungsten Carbide Teeth
Hole Size:
6 sizes: 7/8'', 1-1/8'', 1-3/8'', 1-3/4'', 2'', 2-1/2''
Maximum Cutting De:
3/16'' (4.8MM)
Product Height:
2.200 IN
Product Length:
9.600 IN
Product Type:
Quick Change Carbide Cutter Set
Product Width:
5.900 IN
Shank Size:
645-011: 3/8'' (9.5mm) 645-022: 7/16'' (11.1MM)
Volume:
2.73 LB
Department:
Electrical
Product Subgroup:
Hole Saws & Bits
Product Group:
Power Tools & Accessories

Greenlee 52078281 – Frequently Asked Questions

1) How thick a material can these cutters go through?
Maximum cutting depth is 3/16 inch (4.8 mm). That covers standard-gauge electrical panel, box and enclosure sheet steel. For anything thicker than 3/16 inch, including structural plate or heavy-wall material, these are the wrong tool.
2) Can I use this kit on stainless or hardened enclosures instead of a knockout punch set?
The teeth are tungsten carbide, which is what gives these cutters life on repeated cuts through metal enclosures, and the rated capacity is material up to 3/16 inch thick. They cut from a drill, so you do not need access to both sides of the panel the way a draw-stud punch does. If you are putting holes in an already-mounted panel or a box with no room behind it, the cutter is the practical choice; if you need a burr-free hole in heavier material, a knockout punch is the better route.
3) What is the Greenlee part number to order, and what are the cutters inside called?
Order the kit as Greenlee 52078281. Inside, the cutters are identified by two shank series: 645-011 with the 3/8 inch shank and 645-022 with the 7/16 inch shank, which is what you reference when replacing a single worn cutter rather than the whole set.
4) Is this kit suited to cutting conduit knockouts in panels already installed on site?
Yes, that is the intended use. The quick change design lets you swap cutter sizes without rebuilding the setup, which matters when a single panel needs 7/8 inch and 1-3/8 inch openings in the same visit. Typical applications are electrical panels and enclosures, conduit and fitting knockout prep, panelboard and junction box fabrication, and both new construction and retrofit work.
5) How big is the Greenlee 52078281 case, and will it fit in a tool bag?
Kit dimensions are 9.600 in length x 5.900 in width x 2.200 in height, and the set weighs 2.73 lb. It drops flat into a standard tool bag or van drawer with all eight pieces kept together.
How fast can I get the Greenlee 52078281 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 52078281 come with a warranty?
Absolutely. The Greenlee 52078281 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 52078281?
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 52078281 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.
!