Adjustable Wrench - 2 3/4 - 4 3/4 In Nut / Bolt Size - OTC Tools and Equipment

The OTC 7641 Adjustable Wrench is an essential tool for professional technicians and mechanics working with large fasteners across heavy-duty vehicles and industrial systems. This robust wrench eliminates the need for an extensive collection of oversized spanners by providing a versatile 2-3/4" to 4-3/4" (70 mm to 120 mm) nut and bolt capacity. Engineered for demanding, high-torque applications, it delivers reliable performance in challenging environments.

Key Features

• Wide Jaw Capacity: The OTC 7641 adjusts from 2-3/4" to 4-3/4" (70 mm to 120 mm) in 1/8" increments, making it suitable for common large sizes found on heavy truck axle nuts, hydraulic fittings, and industrial hardware.
• High Leverage Design: Measuring 35.5" (90.2 cm) overall length and weighing 31.6 lb (14.3 kg), this wrench provides substantial leverage to loosen corroded or over-tightened fasteners, rated to withstand up to 5,000 ft-lbs of torque.
• Durable Construction: Built by OTC Tools and Equipment with robust materials, this adjustable wrench is designed for consistent, professional service in fleet maintenance, off-road equipment, and plant operations.
• Secure, Precise Adjustment: A smooth, tight-adjusting mechanism helps maintain full contact on large hex surfaces, significantly reducing the risk of rounding fasteners and slippage.
• Inventory Efficiency: This single adjustable wrench effectively replaces multiple large spanners or oversized open-end wrenches, optimizing tool crib space and reducing investment for occasional big-fastener jobs.

Applications

The OTC 7641 is well-suited for Class 6–8 truck and bus service, construction and agricultural machinery, mining and off-road equipment, and industrial plant maintenance. Typical uses include drivetrain and axle hardware, suspension and chassis components, large hydraulic couplings, valves, flanges, and structural steel fasteners in municipal and industrial systems.

Specifications

• Model: OTC 7641
• Jaw Capacity: 2-3/4" to 4-3/4" (70 mm to 120 mm)
• Overall Length: 35.5" (90.2 cm)
• Weight: 31.6 lb (14.3 kg)