Wiha 75810 Screwdriver Insert Bit 4mm Drive 5/64 Hex

Product Description

The WIHA 75810 is a precision screwdriver insert bit engineered for use with 4 mm hex drive systems. It measures 28 mm (approximately 1.1 inches) in overall length and features a 5/64-inch hex profile, making it suited for fine fastener work in tight or confined spaces. At 0.01 pounds, the bit is lightweight and designed for use in precision applications where control and accuracy matter. Electricians, electronics technicians, and field service professionals typically reach for insert bits like this when working on instrument panels, control boards, small appliances, or delicate assemblies where a standard-length screwdriver would be impractical.

This insert bit fits into 4 mm hex drive handles, bit holders, and compatible power tool chucks. The compact 28 mm overall length is specifically suited for precision or close-quarters work, including low-voltage control wiring, instrumentation panels, HVAC control boards, and similar small-fastener applications common in trade service environments. The 5/64-inch hex tip size targets fasteners found in consumer electronics, HVAC equipment access panels, and electrical enclosures.

Key Features

• 4 mm hex drive system compatibility for use with standard precision bit holders and handles
• 5/64-inch hex tip for small-fastener applications in tight spaces
• 28 mm overall length optimized for precision and confined-space access
• Lightweight at 0.01 pounds, reducing hand fatigue during detailed work
• Single-piece packaging suitable for individual replacement or toolbox stocking

Compatibility

Designed for use with 4 mm hex drive bit holders, precision screwdriver handles, and compatible power or hand tool chucks that accept insert-style bits of this drive size.

Installation Notes

Insert bits should be seated fully into the drive holder before applying torque to avoid tip slippage or fastener damage. When working on electrical panels or control boards, de-energize the equipment and follow applicable NEC lockout/tagout procedures before accessing fasteners. Inspect the bit tip for wear or deformation before each use, as a damaged tip can strip small-fastener heads.