Proto J4770-2M Hand Hex Bit Socket 1/4 in Drive 2 Mm

Product Description

The PROTO J4770-2M is a hand hex bit socket designed for fastening and loosening hex fasteners in tight or precision applications. It features a 1/4 inch square drive and accepts a 2 mm hex bit, making it well-suited for small-fastener work where accuracy and fit matter. The overall length is 1-7/8 inches, with a 1 inch bit length that provides solid engagement on the fastener. This socket is a hand-tool-use component intended for mechanics, industrial technicians, and trade professionals who work with metric hex fasteners in assembly or maintenance tasks.

This hex bit socket is used in applications requiring a 2 mm hex drive on fasteners found in light mechanical assemblies, equipment panels, and precision hardware. It fits standard 1/4 inch drive ratchets, extensions, and adapters, making it compatible with common hand-tool setups in shop or field environments. The compact overall length suits confined spaces where larger sockets cannot reach.

Key Features

• 1/4 inch square drive for use with standard ratchets and drive accessories
• 2 mm hex bit size for metric hex fastener applications
• 1-7/8 inch overall length for general-access use
• 1 inch bit length for reliable fastener engagement
• Compact form factor suited for confined-space fastening tasks

Compatibility

Designed as a standard-fit replacement or addition for 1/4 inch drive hand-tool sets requiring a 2 mm hex bit socket.

Installation Notes

Install and remove using a 1/4 inch drive ratchet, torque wrench, or extension bar. Ensure the hex bit is fully seated in the fastener before applying torque to avoid rounding the hex recess. Inspect the bit tip for wear before use on precision or torque-sensitive fasteners. No special tools or codes apply to hand socket use, but follow applicable equipment service documentation for torque requirements.