TEKTON TRQ95901 Micrometer Torque Wrench Set, 1/4, 3/8, 1/2-Inch Drive, Dual-Direction-Micrometer Torque Wrench Set, 3-Piece (50.8-508 cm, 30.5 m, 12.2-61 m)

Includes 1/4 inch drive, dual-direction micrometer torque wrench (50.8-508 cm-Lb); 3/8 inch drive, dual-direction micrometer torque wrench (3-30.5 m), 1/2 inch drive, dual-direction micrometer torque wrench (12.2-61 m ); 3 pieces. Torque Wrench Housing; 1/4" x 1/4" Magnetic Hex Bit Holder Socket Wrench; 1/4" (F) x 3/8" (M) Adapter; 3/8" (F) x 1/4" (M) Reducer 1/5cm (F) x 3/20.3 cm (M) Reducer 3-Piece Calibration eccertificates Accuracy within ± 3% for both directions: Actual calibration accuracy is indicated on the certificate for your wrench, but is not worse than ± 3% Complete calibration according to ISO standard - because each torque wrench is calibrated to the ISO standard, it also meets and exceeds the ASME standard Serialized Calibration Certificates: Each wrench contains a certificate that displays serial number, test results and test equipment and conditions Fixed ratchet head with 90 teeth: the single crescent latch always holds 9 teeth with the gearbox, so that it does not skip under load, and the 4 degree arc reduces the length of the ride