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Slug-Buster knockout kit

Includes assortment of commonly used Slug-Buster knockout punches.
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Wrench

1-inch hex ratchet wrench with easy-grip handle.
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Punch

Unique punch profile also splits slugs for easier slug removal.
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Step 1
Unique Slug-Buster punch design creases slug as the punch is drawn into the die.
Step 2
Slug is split in half as punching operation is completed.
Step 3
Split slug falls free from the die and stud.

Slug-Buster Knockout Kit with Ratchet Wrench

The Greenlee Slug-Buster knockout kit is favored by most electrical experts. This hole-making kit was made for the serious contractor or electrician, as well as the do-it-yourself handyman, coming complete with the most common size of hole-making tools--including punches, dies, and draw studs--to meet the busy electrician's needs on the construction site. The Slug-Buster knockout kit also includes a 1-inch hex ratchet for added convenience.

Versatile Performance

The kit's punch has a unique profile to make the electrician's hole making easier. It splits the slug in half making it extremely easy to remove. It will perform punch holes for most conduit sizes including 1/4-inch, 1/2-inch, and 3/4-inch sizes, as well as 1-inch, 1-1/4-inch, 1-1/2-inch, and 2-inch size holes.

Exceptionally resourceful, the tools in the Greenlee Slug-Buster knockout kit will make holes in mild steel and in aluminum up to 10 gauge; they will also punch holes in fiberglass and plastic and can make holes for conduit with an outside diameter of 7/8 inches. Thoughtfully designed, the Slug-Buster can be used with a battery or hydraulic ratchet, as well as a manual ratchet.

Slug-Buster Knockout Punches 0.492 Inch to 2.520 Inches
  • Unique punch profile splits slugs for easier slug removal
  • Use with battery-powered, hydraulic, ratchet, or manual drivers
  • Uses standard Greenlee dies and draw studs
  • Slug Buster punches available in sizes up through 2.52 inches (64 mm)

Slug-Buster Knockout Punch Kit Includes:

Catalog NumberDescriptionSize of Actual Hole
34941Ratchet wrench with 1-inch hex
721-1/21/2-inch conduit size punch7/8 inch0.885 inch22.5 mm16 pg
147221/2-inch conduit size die7/8 inch0.885 inch22.5 mm16 pg
721-3/43/4-inch conduit size punch-1.115 inches28.3 mm-
124AV3/4-inch conduit size die-1.15 inches28.3 mm-
721-11-inch conduit size punch-1.362 inches34.6 mm-
126AV1-inch conduit size die-1.362 inches34.6 mm-
721-1-1/41-1/4-inch conduit size punch-1.701 inches43.2 mm-
128AV1-1/4-inch conduit size die-1.701 inches43.2 mm-
721-1-1/21-1/2-inch conduit size punch-1.951 inches49.6 mm-
440AV1-1/2-inch conduit size die-1.951 inches49.6 mm-
721-22-inch conduit size punch2-3/8 inches2.416 inches61.5 mm-
442AV2-inch conduit size die2-3/8 inches2.416 inches61.5 mm-
00042Ball bearing draw stud with 1-inch hex head--3/8 inch by 1-5/8 inches
304AVBBBall bearing draw stud--3/4 inch by 2-15/16 inches
34758Plastic case

About Greenlee

Greenlee is a leader when it comes to developing innovative tools for electrical contractors. It started in 1862 with the Greenlee brothers' barrel-making machines, then woodworking tools. Today, Greenlee is a respected and trusted source for professional-grade wire- and cable-installation tools. From hole making and bending to test and measurement, Greenlee provides an array of tools to make your job faster, safer, and easier.

Greenlee Textron Inc. warrants to the original purchaser of these goods for use that these products will be free from defects in workmanship and material for their useful life, excepting normal wear and abuse.* This warranty is subject to the same terms and conditions contained in the Greenlee Textron Inc. catalog
*Standard one-year limited warranty.



  • 1/2" - 2" SLUG-BUSTER KNOCKOUT KIT: Punches precise holes in up to 10-gauge mild steel, aluminum, brass, copper, fiberglass, and plastics with an outside diameter of 7/8" for 1/2" to 2" conduit size knockouts
  • HIGH-LEVERAGE RATCHET WRENCH: Built to meet the needs of busy electricians on the jobsite, the high-leverage 1" hex ratchet wrench features a convenient 5-degree ratcheting mechanism
  • ERGONOMIC PUNCH PROFILE: Effortlessly splits slugs in half to make the slug removal process extremely easy and has a knurled edge for a secure grip
  • EASY THREADING: Punch tool conveniently eliminates cross-threading by drawing studs with the dog point tip to make threading simple
  • INCLUDED CARRYING CASE: Kit includes a KRW-1 high-leverage ratchet wrench, 1/2" to 2" conduit size Slug-Buster punches, 1/2" to 2" conduit size dies, 7/16" and 3/4" ball-bearing draw studs, and a KCC-RW2 rugged carrying case
  • 1/2" - 2" SLUG-BUSTER KNOCKOUT KIT: Punches precise holes in up to 10-gauge mild steel, aluminum, brass, copper, fiberglass, and plastics with an outside diameter of 7/8" for 1/2" to 2" conduit size knockouts
  • HIGH-LEVERAGE RATCHET WRENCH: Built to meet the needs of busy electricians on the jobsite, the high-leverage 1" hex ratchet wrench features a convenient 5-degree ratcheting mechanism
  • ERGONOMIC PUNCH PROFILE: Effortlessly splits slugs in half to make the slug removal process extremely easy and has a knurled edge for a secure grip
  • EASY THREADING: Punch tool conveniently eliminates cross-threading by drawing studs with the dog point tip to make threading simple
  • INCLUDED CARRYING CASE: Kit includes a KRW-1 high-leverage ratchet wrench, 1/2" to 2" conduit size Slug-Buster punches, 1/2" to 2" conduit size dies, 7/16" and 3/4" ball-bearing draw studs, and a KCC-RW2 rugged carrying case

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