Gearwrench 80164 Hex Bit Socket 1/4 in Drive 4 Mm

Product Description

The GEARWRENCH 80164 is a 1/4 inch drive hand hex bit socket designed for driving 4 mm hex fasteners in precision mechanical work. Built from chrome-finished steel, it delivers corrosion resistance and durability under regular shop conditions. The socket measures 1-17/32 inches overall length with a 0.984 inch bit length, making it compact enough for use in tight quarters. It meets ANSI and ASME B107.5M standards, confirming dimensional accuracy and performance requirements expected by trade professionals. Mechanics, automotive technicians, and general maintenance professionals reach for this socket when hex fasteners need reliable engagement without rounding.

This hex bit socket fits 1/4 inch drive ratchets, extensions, and torque wrenches commonly found in automotive, HVAC, plumbing, and light industrial service kits. The 4 mm hex size is a standard metric fastener dimension appearing frequently in machinery panels, access covers, set screws, and component housings. It is suited for both residential and commercial service applications where controlled torque on smaller hex fasteners is required.

Key Features

• 1/4 inch drive accepts standard ratchets, extensions, and torque wrenches
• 4 mm hex bit size for precise engagement on metric fasteners
• 0.984 inch bit length for reach in confined fastener locations
• Chrome-finished steel construction for durability and corrosion resistance
• Meets ANSI and ASME B107.5M dimensional standards
• Compact 1-17/32 inch overall length for tight-space access

Compatibility

Designed as an OEM-style replacement hex bit socket compatible with standard 1/4 inch drive tool systems requiring a 4 mm hex bit.

Installation Notes

Install and remove this socket by hand when attaching to or detaching from a 1/4 inch drive ratchet or extension. Verify the fastener hex size matches the 4 mm bit before applying torque to avoid fastener rounding. Power down or de-energize any equipment before accessing fasteners on electrical or mechanical panels. Use a calibrated torque wrench when the fastener specification requires a defined torque value.