Sk 45964 Hex Bit Socket 3/8 in Drive 4 Mm Ball End

Product Description

The SK 45964 is a long ball end hex bit socket designed for hand tool use in tight-clearance fastening applications. It accepts a 3/8 inch drive and fits 4 mm hex fasteners. The ball end tip allows engagement at off-axis angles, which is useful when working in confined spaces where a straight approach is not possible. Overall length is 6 inches, with a 5 inch bit length, giving the user extended reach compared to standard-length sockets. The body is steel construction with a chrome finish for corrosion resistance and a clean appearance. Technicians across HVAC, plumbing, electrical, and mechanical trades use this type of socket for equipment access panels, motor mounts, and similar fastening tasks.

This socket is suited for residential and light commercial service work where 4 mm hex fasteners are encountered. The extended 6 inch overall length makes it well matched for recessed fasteners or applications where standard bit sockets cannot reach. It is compatible with any 3/8 inch drive ratchet, extension, or torque wrench. The ball end design gives up to approximately 30 degrees of angular offset engagement, making it practical for awkward fastener positions common in equipment cabinets and mechanical enclosures.

Key Features

• Ball end tip allows off-angle engagement in confined or obstructed spaces
• 3/8 inch drive fits standard ratchets, extensions, and torque wrenches
• 4 mm hex size for metric fasteners
• 6 inch overall length with 5 inch bit length for extended reach
• Steel construction with chrome finish for durability and corrosion resistance
• Long ball end profile suitable for deeply recessed fasteners

Compatibility

Designed for use with any 3/8 inch drive hand tool, including ratchets, breaker bars, and torque wrenches that accept standard square drive bit sockets.

Installation Notes

Use with a calibrated torque wrench when fastener torque specifications are required by the manufacturer or applicable service code. De-energize and lock out all equipment before accessing fasteners on electrical or mechanical assemblies. Ball end sockets are intended for hand tool use only and should not be used with impact drivers, as impact loading can damage the ball end geometry. Inspect the socket for wear or cracks before each use.