Sturtevant Richmont 810587 Torque Limiting Screwdriver

Accuracy of +/- 6% Indicated Value (from 20% to 100% of capacity). Meets or exceeds ASME B107.14M and ISO 6789. Incredibly durable! Many users have experienced a service life of 10+ years! Operators cannot over-torque - clutch releases at set torque. Anti-backlash design for repeatability. To operate, simply dial in torque and insert bit. Bi-directional CW/CCW versatility. Polished aluminum exterior. Scales clearly engraved on shaft and magnified for ease of reading. Comes with FREE calibration certificate from our ISO/IEC 17025 accredited laboratory! Can be ordered with certification for English or metric units of measure. (Use P/N 810017 for Nm certification on Cal 36/4). Uses standard bits, adapters, and sockets.