Du-Bro DUB451 Ball Wrench Metric 3mm / 4mm Socket Head

The Du-Bro DUB451 Ball Wrench is a 3mm metric ball-end hex wrench designed for 4mm socket head screws commonly found on RC aircraft, engines, and hardware. The ball-end design allows angled access to fasteners in tight or hard-to-reach locations, making it an essential tool for metric RC assembly and field maintenance.

Key Features

• 3mm ball-end hex wrench for 4mm socket head screws
• Ball-end design allows angled access in tight spaces
• Ideal for metric RC aircraft hardware and engine fasteners
• Durable construction for long-term workshop and field use
• Compact size for easy storage in a field kit

Compatibility

• Fits 4mm socket head cap screws
• Suitable for metric RC aircraft, engine, and hardware assembly

Specifications