Greenlee K2BB-2 2" Slug-Buster Round Knockout Punch Set

Greenlee K2BB-2 2" Slug-Buster Round Knockout Punch Set

The Greenlee K2BB-2 Slug-Buster Knockout Set is a 2" conduit size (2.42" or 61.5 mm) punch and die assembly built for cutting clean, round knockouts into mild steel, brass, copper, aluminum, fiberglass, and plastic enclosures. Designed to replace the legacy 7211BB-2, this knockout set features a unique punch profile that splits slugs for easy removal, alignment markings for accurate hole placement, and a knurled edge that improves grip during setup. The punch and die are Made in USA and are intended for use with the Greenlee KRW-1 ratchet wrench, making this set a dependable choice for electricians and panel fabricators who need fast, repeatable 2" knockouts in the field or shop.

Key Features

• Trade Size: Sized for 2" conduit (2.42" or 61.5 mm) openings, matching standard conduit hub dimensions for panels and enclosures.
• Durable Construction: Punch is manufactured from 10 ga mild steel for repeated use in demanding installation environments.
• Slug-Splitting Punch Profile: The unique punch geometry splits slugs during the cut, allowing for easy, fast slug removal without extra tooling.
• Alignment Markings: Printed alignment marks help improve accuracy when positioning the punch on the enclosure surface.
• Knurled Grip: A knurled edge on the set provides a more secure grip during operation and reduces slippage.
• Laser Marked: Laser markings on the set allow for quick part identification in a crowded toolbox or truck.
• Multi-Material Compatibility: Rated for use in mild steel, brass, copper, aluminum, fiberglass, and plastics, with capacity optimized for mild steel.
• Round Shape: Produces a clean, round knockout suited for standard conduit connectors and fittings.

Technical Specifications

• Country of Origin: United States
• Size: 2" Conduit (2.42" or 61.5 mm)
• Thickness: Punch 10 ga mild steel
• Type: Knockout Set
• Material Compatibility: For use in mild steel, brass, copper, aluminum, fiberglass and plastics
• Shape: Round
• Capacity: Optimized for use in mild steel

Typical Applications

• Cutting 2" Conduit Knockouts in Electrical Enclosures and Panels
• Panel Fabrication and Custom Enclosure Modification
• Field Installation of Conduit Hubs and Connectors
• Working with Mild Steel, Brass, Copper, Aluminum, Fiberglass, and Plastic Enclosures
• Use with Greenlee KRW-1 Ratchet Wrench for Manual Knockout Operations

Why Greenlee?

Greenlee builds the K2BB-2 Slug-Buster punch and die in the USA using 10 ga mild steel construction, with a slug-splitting punch profile that speeds up removal and reduces downtime on the job. Alignment markings, a knurled grip, and laser-marked identification reflect Greenlee's focus on practical, field-tested design details that help electricians and panel builders work faster and more accurately on 2" conduit knockouts.