Greenlee 52084899 Slug-Buster ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$489.56
Greenlee 52084899 Slug-Buster 1/2" - 1-1/4" Manual Knockout Set

Greenlee 52084899 Slug-Buster 1/2" - 1-1/4" Manual Knockout Punch Set

(No reviews yet) Write a Review

Model: 52084899
Selected Model is

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

$489.56
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 52084899 Slug-Buster 1/2" - 1-1/4" Manual Knockout Punch Set

The Greenlee 52084899 Slug-Buster Manual Knockout Set is a professional-grade punch kit built for electricians and panel fabricators who need clean, accurate conduit openings on the jobsite. Covering the 1/2" - 1-1/4" trade size range, this manual set is engineered to punch openings in up to 10 ga mild steel or 12 ga stainless steel enclosures and panels. The kit pairs matched Slug-Buster® punches and dies with two ball-bearing draw studs (7/16" and 3/4") for smooth, low-effort operation, and it ships in a dedicated KCC-BB1-1/4 carrying case for organized, protected transport between jobs.

Key Features

  • Trade Size Range: Punches and dies cover the 1/2" - 1-1/4" conduit size range for common panel and enclosure knockout applications.
  • Punch Capacity: Rated to punch up to 10 ga mild steel or 12 ga stainless steel, suitable for demanding electrical enclosure work.
  • Ball-Bearing Draw Studs: Includes a 7/16" and a 3/4" ball-bearing draw stud for reduced turning effort and smoother, faster knockout cycles.
  • Complete Slug-Buster® Set: Matched 1/2" - 1-1/4" Slug-Buster® punches and 1/2" - 1-1/4" dies are included for a full, ready-to-use punch system.
  • Organized Storage: Ships in a KCC-BB1-1/4 carrying case that keeps punches, dies, and draw studs protected and organized between jobs.
  • Compact Footprint: Product dimensions of 9.5 IN length, 6.35 IN width, and 2.9 IN height keep the case easy to store in a truck or tool bag.
  • US Manufactured: Made in the US for consistent quality control on every punch and die in the set.

Technical Specifications

  • Product Type: Knockout Punch Set
  • Trade Size: 1/2" - 1-1/4"
  • Product Material: Punches up to 10 ga mild steel or 12 ga stainless steel
  • Consist Of: 1/2" - 1-1/4" Slug-Buster® punches, 1/2" - 1-1/4" dies, 7/16" ball-bearing draw stud, 3/4" ball-bearing draw stud, and KCC-BB1-1/4 carrying case
  • Product Height: 2.9 IN
  • Product Length: 9.5 IN
  • Product Width: 6.35 IN
  • Country Of Origin: United States

Typical Applications

  • Electrical Panel and Enclosure Fabrication
  • Conduit Entry Point Preparation
  • Field Modifications on Steel and Stainless Steel Enclosures
  • Commercial and Industrial Electrical Installations
  • New Construction and Retrofit Panel Work

Why Greenlee?

Greenlee builds its Slug-Buster knockout sets for electricians who need dependable, repeatable punch performance on the jobsite. This 52084899 set pairs matched 1/2" - 1-1/4" punches and dies with ball-bearing draw studs and a dedicated KCC-BB1-1/4 carrying case, giving crews a complete, organized solution rated to punch up to 10 ga mild steel or 12 ga stainless steel. Made in the US, it's built to help professionals deliver clean, code-compliant knockouts on every panel and enclosure.

Manufacturer Resources

Spec Sheet

Product Specs

Consist Of 1:
1/2" - 1-1/4" conduit size Slug-Buster® punches
Consist Of 2:
1/2" - 1-1/4" conduit size dies
Consist Of 3:
7/16" ball-bearing draw stud
Consist Of 4:
3/4" ball-bearing draw stud
Consist Of 5:
KCC-BB1-1/4 carrying case
Country Of Origin:
United States
Packaged Weight:
0.123
Product Height:
2.9 IN
Product Length:
9.5 IN
Product Material:
Punch up to 10 ga mild steel or 12 ga stainless steel
Product Type:
Knockout Set
Product Width:
6.35 IN
Volume:
4.85 LB
Department:
Electrical
Product Subgroup:
Knockout Punches
Product Group:
Electrical Installation Tools

Greenlee 52084899 – Frequently Asked Questions

1) What conduit sizes will the Greenlee 52084899 Slug-Buster knockout set punch?
The 52084899 set covers the 1/2 inch through 1-1/4 inch conduit trade sizes, with matched Slug-Buster punches and dies for each size in that range. If you need openings above 1-1/4 inch (1-1/2, 2 inch and up), this set will not get you there and you need a larger-range kit or add-on punches.
2) Can this manual knockout set punch a stainless steel enclosure, or only mild steel?
Both. The set is rated to punch up to 10 gauge mild steel or 12 gauge stainless steel, so standard painted steel panels and stainless NEMA 4X enclosures are both in range. Stainless is harder, which is why the rating steps back a gauge. Anything thicker than those limits is outside what these punches are rated to pull.
3) Does the Greenlee 52084899 set come with draw studs, or do I need to buy them separately?
Two ball-bearing draw studs are included, a 7/16 inch and a 3/4 inch. The smaller stud handles the small conduit punches and the 3/4 inch stud takes the larger ones. Ball-bearing studs cut the turning effort compared with a plain stud, which matters when you are doing a panel full of knockouts by hand.
4) What exactly is in the Greenlee 52084899 kit?
Five items: the 1/2 to 1-1/4 inch Slug-Buster punches, the matching 1/2 to 1-1/4 inch dies, a 7/16 inch ball-bearing draw stud, a 3/4 inch ball-bearing draw stud, and the KCC-BB1-1/4 carrying case. Punches and dies are matched as a system, so nothing else has to be ordered to start punching. A drill and bit for the pilot hole and a wrench to turn the stud are the only shop items you supply.
5) Is the Greenlee Slug-Buster set small enough to keep in a truck or tool bag?
The kit ships in a KCC-BB1-1/4 carrying case measuring 9.5 inches in length, 6.35 inches in width and 2.9 inches in height, so it stacks easily in a van bin or drops into a tool bag. The case keeps the punches, dies and both draw studs sorted so you are not hunting for a matching die on the ladder.
6) Is this Greenlee knockout set made in the USA? We have domestic sourcing requirements.
Yes, the 52084899 Slug-Buster set is manufactured in the United States. For procurement files, the manufacturer part number is 52084899 under the Greenlee brand.
How fast can I get the Greenlee 52084899 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 52084899 come with a warranty?
Absolutely. The Greenlee 52084899 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 52084899?
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 52084899 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.
!