Only the exact torque guarantees a secure fastening of parts. This torque indicator releases mechanically when the pre-set torque value has been reached and also provides both audible and tactile feedback to the operator.Excessive torque must be avoided since the screws can be damaged or destroyed when loosened. Each professional torque indicator is made from high-strength steel and nickel plated for heavy use and added durability.The ergonomic handle is 105mm long and the blade is 65mm long.