With Beta's Zero Reset Technology torque wrenches, releasing the tension after each use is not required due to high-performance materials and heat treatment of both the spring and component parts of the adjustment system. These torque wrenches are user friendly with high scale visibility and easy-to-select settings with extremely accurate increments.The graduated vernier scale allows minimum interval fractions to be set up in tenths of ft-lb. The double graduation in Nm allows for clearer, simpler torque visibility. The 72 tooth mechanism reversible ratchet makes for quick, accurate wrench operation, ensuring a take-up angle of no more than 5°. These torque wrenches are ideal for right-hand tightening with a torque accuracy of 3%. The bi-material, ergonomic handle, ensures a safe, comfortable hold and is made from materials resistant to fuel, oil and industrial liquids. 100% Italian made, these torque wrenches are designed, manufactured, assembled, tested and certified in Italy.