Greenlee K2BBM-0305 30.5 mm Slug-Buster Manual Knockout Punch Set

Greenlee K2BBM-0305 30.5 mm Slug-Buster Manual Knockout Punch Set

The Greenlee K2BBM-0305 is a 30.5 mm Slug-Buster® manual knockout punch set engineered for clean, round knockouts in mild steel, brass, copper, aluminum, fiberglass, and plastics. The punch is manufactured from 10 ga mild steel and is optimized for use in mild steel enclosures, while the punch and die are Made in USA. This set is designed for use with the Greenlee KRW-1 ratchet wrench and replaces the earlier 60246 knockout set, giving electricians a drop-in upgrade with improved features for panel and enclosure fabrication.

Key Features

• Trade Size: 30.5 mm round knockout, sized for standard conduit and fitting openings.
• Durable Construction: Punch is 10 ga mild steel, optimized for use in mild steel material for long tool life in demanding shop and field applications.
• Unique Punch Profile: Splits slugs during punching, allowing the slug to be removed easily without extra tools or steps.
• Knurled Edge: Improved grip on the punch and die for secure handling during setup and operation.
• Alignment Markings: Printed directly on the tool to improve punching accuracy and repeatability.
• Laser Markings: Allow for quick, at-a-glance part identification on the shop floor or truck.
• Material Versatility: Suitable for use in mild steel, brass, copper, aluminum, fiberglass, and plastics.
• Direct Replacement: Replaces the Greenlee 60246 knockout set for easy cross-reference and reordering.

Technical Specifications

• Country of Origin: United States
• Type: Knockout Set
• Thickness: Punch 10 ga mild steel
• Material: For use in mild steel, brass, copper, aluminum, fiberglass and plastics
• Shape: Round
• Size: 30.5 mm
• Capacity: Optimized for use in mild steel

Typical Applications

• Punching Round Conduit and Fitting Knockouts in Electrical Enclosures
• Panelboard and Junction Box Fabrication
• Field Modification of Mild Steel, Brass, Copper, and Aluminum Panels
• Fiberglass and Plastic Enclosure Modification
• Use with Greenlee KRW-1 Ratchet Wrench for Manual Knockout Punching

Why Greenlee?

Greenlee's Slug-Buster® knockout punches combine a unique slug-splitting punch profile with knurled grip surfaces and laser and alignment markings so electricians can punch clean, accurate 30.5 mm round openings quickly and repeatably. With a 10 ga mild steel punch and die Made in USA, the K2BBM-0305 is built to deliver dependable, code-compliant results for demanding commercial and industrial panel fabrication work, and it serves as a direct replacement for the Greenlee 60246 set for shops already standardized on Greenlee tooling.