The Screen Torque Wrench 2G is better, stronger, and easy to use. It has been factory calibrated to +/- 4% and our new mechanism ensures that this accuracy is retained for longer. Every wrench is supplied with a calibration certificate to satisfy the requirements of ISO 6789:2017 and ASEM B107-300. Additional features include a numeric screen display that makes it easy to read the torque value, an ergonomic grip that offers better haptics than other brands, an alloy steel pawl that ensures product stability and reliability, a two-point contact mechanism for greater accuracy, and special compression springs to ensure superb anti-elastic fatigue. All products are 100% Made in Taiwan.