Greenlee Slug-Buster Round Replacement Punch for Knockout Units

Greenlee Slug-Buster Round Replacement Punch, Knockout Punch Component

The Greenlee Slug-Buster Round Replacement Punch is a direct-fit replacement component for electricians who rely on Greenlee's Slug-Buster knockout punch system to open clean, accurate conduit-size holes in panels and enclosures. This round replacement punch is available for the 1/2" and 3/4" conduit size punch units, so contractors and maintenance crews can restock the exact punch their existing Slug-Buster unit needs without buying an entirely new punch and die set. Every punch in this family is rated for mild steel capacity up to 10 GA (3.500 MM), giving installers dependable performance for production knockout work on panelboards, enclosures, and gutters. Manufactured in the United States, these replacement punches drop into your existing Slug-Buster punch unit setup without modification, keeping your tooling in service and your crew moving on the job.

Key Features

• Trade Size Range: Available for the 1/2" and 3/4" conduit size punch units, covering the most common Slug-Buster replacement needs.
• Type: Replacement, round punch designed for quick swap-in service on compatible Slug-Buster punch units.
• Capacity: Rated for mild steel up to 10 GA (3.500 MM) for durable, code-compliant knockout work.
• Alignment Markings: Clearly marked alignment guides improve punching accuracy and overall productivity on the job.
• Part Identification: Punches and dies are clearly marked for quick, confident part identification during replacement.
• Shape: Round profile matched to the corresponding Slug-Buster punch unit for consistent, clean cuts.
• Country of Origin: Made in the USA for consistent manufacturing quality.

Technical Specifications

• Country of Origin: United States
• Sizes Available: 1/2" and 3/4" Conduit Size Punch Units
• Type: Replacement, Round
• Sub Brand: Slug-Buster
• Capacity Mild Steel: 10 GA (3.500 MM)
• Shape: Round

Typical Applications

• Replacement Component for Slug-Buster Conduit Size Punch Units
• Panel and Enclosure Knockout Punching
• Mild Steel Conduit-Size Hole Punching in Electrical Panels
• Electrical Contractor and Maintenance Toolkits
• Restocking Production Punch Units for Panel Fabrication

Why Greenlee?

Greenlee's Slug-Buster line is built for electricians who need reliable, precisely marked punches and dies that keep production knockout work fast and accurate. With alignment markings for improved accuracy, clear part identification, and mild steel capacity rated to 10 GA across the 1/2" and 3/4" sizes, these replacement punches are manufactured in the United States to support dependable, code-compliant conduit-size punching in professional electrical installations.