The 28937 Norbar 12PC 1/4” Square Drive Hex Bit Set for TTs Torque Screwdriver is an essential service solution designed to restore the functionality and extend the life of Norbar TTs 1/4” torque screwdrivers. Engineered with precision and quality, this kit includes a replacement blade mechanism and associated internal components to ensure accurate torque delivery and safe operation after extended use or wear.

Constructed from high-grade materials, the 28937 Norbar 12PC 1/4” Square Drive Hex Bit Set for TTs Torque Screwdriver maintains the integrity and performance of the original tool. Its components are designed to fit seamlessly into the TTs series, restoring the tools slip mechanism that activates at preset torque valueseliminating the risk of over-tightening. The included elements are factory-calibrated or ready for calibration to maintain compliance with ISO 6789-1:2017 torque standards.

Ideal for maintenance technicians, calibration labs, and industrial settings where torque-controlled fastenings are critical, the 28937 Norbar 12PC 1/4” Square Drive Hex Bit Set for TTs Torque Screwdriver minimizes downtime while extending tool value. This kit ensures your torque tools remain precise, safe, and fully functional in demanding environments like aerospace, electronics, and assembly lines. Whether youre operating in a cleanroom or field setting, this OEM repair solution offers peace of mind through restored performance, reliability, and safety for torque-critical applications.