Greenlee 52084900 Round Manual Knockout Punch Set, 1/2" - 1-1/4"

Greenlee 52084900 Round Manual Knockout Punch Set, 1/2" - 1-1/4"

The Greenlee 52084900 is a Standard Round Manual Knockout Set covering the 1/2" - 1-1/4" conduit size range, built for electricians who need clean, code-compliant openings in electrical enclosures, panels, and boxes without a hydraulic driver. This manual punch kit uses Slug-Buster® punches and matching dies sized from 1/2" through 1-1/4", driven by ball-bearing draw studs for smooth, low-effort operation. The set is rated to punch up to 10 ga mild steel or 12 ga stainless steel, making it a versatile field tool for panelboard, enclosure, and cabinet fabrication work. Everything ships together in a dedicated carrying case so the punches, dies, and studs stay organized and protected between jobs.

Key Features

• Trade Size Range: Covers 1/2" - 1-1/4" conduit sizes for common electrical box and enclosure openings.
• Slug-Buster® Punches: 1/2" - 1-1/4" conduit size Slug-Buster® punches included for clean, burr-free knockouts.
• Matched Dies: 1/2" - 1-1/4" conduit size dies included to pair precisely with each punch for accurate hole sizing.
• Ball-Bearing Draw Studs: Includes a 7/16" ball-bearing draw stud and a 3/4" ball-bearing draw stud for smoother, lower-torque manual punching.
• Material Capacity: Rated to punch up to 10 ga mild steel or 12 ga stainless steel, suitable for standard enclosure and panel gauges.
• Organized Carrying Case: Ships with a KCC-BB1-1/4 carrying case to keep punches, dies, and draw studs organized and protected on the jobsite.
• Compact Footprint: Case measures approximately 9.5 IN long by 6.45 IN wide by 6.45 IN high at roughly 4.99 LB, keeping the full set portable for truck or toolbox storage.

Technical Specifications

• 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: US
• Packaged Weight: 4.99 LB
• Product Height: 6.45 IN
• Product Length: 9.5 IN
• Product Width: 6.45 IN
• Material Capacity: Punches up to 10 ga mild steel or 12 ga stainless steel

Typical Applications

• Electrical Panel and Enclosure Fabrication
• Cabinet and Junction Box Knockout Cutting
• Conduit Entry Preparation for Mild Steel and Stainless Steel Enclosures
• Field Modifications to Electrical Enclosures
• Commercial and Industrial Electrical Installations

Why Greenlee?

Greenlee's Slug-Buster® punches and ball-bearing draw studs are engineered to deliver consistent, clean-cut knockouts across 1/2" - 1-1/4" sizes without a hydraulic driver, and the included KCC-BB1-1/4 carrying case keeps the full punch, die, and stud set organized between jobs. Rated to punch up to 10 ga mild steel or 12 ga stainless steel, this manual set gives electricians a dependable, portable tool for enclosure and panel work where reliable, code-compliant openings matter. With every punch and die sized specifically to the 1/2" - 1-1/4" conduit range, and a compact 9.5 IN x 6.45 IN x 6.45 IN case weighing about 4.99 LB, this Greenlee set is built for jobsite-ready, repeatable results on commercial and industrial electrical work.