Round Punch Unit - 120 mm | Knockout Punch for Electrical Applications

The Round Punch Unit - 120 mm is a replacement punch designed for use with standard round knockout punch units. Manufactured by Greenlee in the USA, this tool is suitable for creating precise, clean holes in mild steel, aluminum, fiberglass, and plastic materials up to 10 gauge (3.5 mm). It is compatible with battery-powered, hydraulic, ratchet, or manual drivers, making it a reliable choice for electrical distributors, lighting solutions providers, wire and cable installers, and switchgear suppliers.

Specifications

• Application: For Standard Round Knockout Punch Unit
• Size: 4.724 inches (120.000 mm)
• Type: Replacement, Round
• Product Weight: 3.85 lbs
• Manufacturer: Greenlee
• Manufacturer Part #: 21489
• Country of Origin: United States
• Made in USA: Yes
• UPC: 783310214892

Features

• Complete punch unit designed for clean, fast, and accurate hole punching
• Compatible with multiple driver types: battery-powered, hydraulic, ratchet, and manual
• Designed for use on conduit and pipe sizes with precise hole diameter matching
• Durable construction suitable for mild steel up to 10 gauge thickness
• Manufactured in the USA ensuring quality and reliability

Downloads & Links

• Spec Sheet
• Spec Sheet