Wera 05066685001 Torq-set Power Screwdriver Bit

Product Description

The WERA 05066685001 is a Torq-Set power screwdriver bit designed for use with 1/4 inch hex drive power tools and bit holders. It drives No. 4 Torq-Set specialty fasteners, which are commonly found in aerospace, defense, and precision mechanical assemblies. The bit measures 3.5 inches in overall length, giving clearance for recessed fasteners and tight housings. At 0.1 pounds, it is light enough for single-hand tool changes during high-cycle work. This bit is suited to technicians and tradespeople who encounter Torq-Set fasteners in the field or on the bench.

This bit is used wherever Torq-Set fasteners appear in controlled assemblies. Typical applications include precision equipment maintenance, specialty fastener installations, and service work on assemblies that use Torq-Set drive profiles to resist cam-out and unauthorized removal. The 1/4 inch hex shank fits standard quick-change bit holders and power screwdrivers common in electrical, HVAC, and mechanical service work.

Key Features

• No. 4 Torq-Set specialty point for cam-out-resistant fastener engagement
• 1/4 inch hex drive shank fits standard quick-change holders
• 3.5 inch overall length provides reach into recessed fastener locations
• Designed for power screwdriver use in high-cycle applications
• Lightweight at 0.1 pounds for easy single-hand bit swaps

Compatibility

Designed for use with 1/4 inch hex drive power screwdrivers and quick-change bit holders that accept standard power bits, and compatible with No. 4 Torq-Set fasteners.

Installation Notes

This bit is installed and removed by technicians using standard 1/4 inch hex quick-change bit holders. Ensure the tool is powered off and the bit is fully seated in the holder before applying torque. Inspect the bit tip for wear before use, as worn Torq-Set tips can damage specialty fastener heads. Torq-Set fasteners require the correct point size for full engagement - do not substitute a cross-tip or other bit profile.