Insulated, individually tested VDE T-handle torque indicator for safe working up to 1,000V T-handle is ideal for transferring controlled tightening torque and high loosening torque Error-free screwdriving due to non-slip friction clutch and exact torque transmission Distinctly audible and noticeable excess-load signal when the pre-set torque is reached Tamper-proof against accidental changing of set torque value