The Proto J6064C is a 3/8" drive micrometer torque wrench with a torque range of 40 to 200 in-lb. It features a ratcheting head, dual-scale laser-marked increments, and a knurled handle for a secure grip. Calibrated to ±3% clockwise and ±6% counter-clockwise accuracy, it meets ASME B107.14M and ISO 6789 standards. Ideal for industrial and maintenance applications. ​