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

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.