Right Angle Hydraulic Knockout Driver (7904E)

Right Angle Hydraulic Knockout Driver (7904E) Hydraulic Punch Driver The Greenlee Right Angle Hydraulic Knockout Driver (model 7904E) is a self-contained hydraulic punch driver designed for efficient hole punching in electrical and lighting solutions. Ideal for electrical distributors and switchgear suppliers, this tool is engineered to punch holes of various shapes and sizes through mild steel, aluminum, fiberglass, plastic, and stainless steel using Greenlee punches, dies, and draw studs. Its right angle driver head rotates over 180 degrees, providing maximum flexibility in tight working areas, making it suitable for wire and cable installation and conduit work. Specifications Manufacturer: Greenlee Manufacturer Part #: 7904-E Product Weight: 10.89 lbs Country of Origin: United States Made in USA: Yes Overall Length: 12.75 inches Maximum Handle Force: 80 lbs Maximum Rated Draw Stud Force: 16,000 lbs Stroke (Maximum): 0.850 inches (Minimum Draw Stud Travel) Hydraulic Operating Pressure: 10,000 lbs Hydraulic Circuit Capacity: Total 3.50 cu. in. (Reservoir 2.32 cu. in.) Seals: Nitrile, Fluorocarbon & Teflon Back-up Rings Fluid Compatibility: Compatible with hydraulic oils, water, oil emulsions, synthetic oils rated for use with nitrile (Buna N) and fluorocarbon (Viton) seal material Circuit Type: Closed Operating Temperature Range: 10°F (-12°C) to 110°F (43°C) Operating Position: No restrictions Features Right angle driver head rotates over 180 degrees for enhanced access in tight spaces Compact and lightweight design for portability and one-person operation Develops up to 8 tons of hydraulic force for easy punching, including 10-gauge stainless steel Compatible with Greenlee Slug-Splitter® punches, dies, and draw studs for punching mild steel, aluminum, fiberglass, plastic, and stainless steel Can be used with non-round punches within tool capacity (adapter may be required) Includes durable plastic carrying case for organized storage and transport Made in the USA, ensuring quality and compliance with industry standards Downloads & Links Spec Sheet Spec Sheet Spec Sheet