The 'Motorq' Professional range of torque wrenches offer accuracy, comfort and ease of use. The reversible ratchet has been designed using compact dimensions and a narrow engagement angle resulting from the 72 tooth pattern. Secure locking mechanism to avoid forced adjustment against the lock Extended soft-touch handle for comfort and reduced calibration drift Fixed-Head push-thru Ratchet engineered for strength and durability(ratchet repair kits available) - Operates in both clockwise anti-clockwise directions Dual scale micrometer adjustment: Nm / lbs.ft (80002000 = lbs.in) Chemical resistant handle and lens for clear reading of scale Accurate to +/- 3% of reading (80002000 is +/- 4%) Supplied with calibration certificate, traceable to National Standards Manufactured to ISO9000:2000 standard Full after sales service and calibration available Specifications3/8" push thru sq dr 4 - 20 Nm / 40 - 180lbs.in Length: 210mm Weight: 0.36kg Spare Parts: 80002170 - Replacement Square Drive