FIRSTINFO H5188 1/4" 10 90in lb Adjustable Torque Screwdriver with Quick Release Bit Holder

【 Calibration Certification Included 】 Torque Range 10-90 in-lbs with 2 in-lbs increments, featuring aluminum scale and tube to reduce weight and enhance durability. ±6% accuracy, certified in accordance with ASME B107.300-2010 and ISO 6789. 【 Extra T-Handle For Higher Torque 】 Use the included T-handle to attach the end of the torque screwdriver to get extra leverage on those high-torque applications. 【 Quick Release Design 】 Just press the locking knob when adjusting the torque; release the locking knob when reaching the setting torque value. Ergonomic shape with non-slip and comfortable features. Equipped with quick release bit holder for easily attaching and releasing the bit. 【 Automatically Slips Design To Prevent Over-Tightening 】 The torque adjustment is intuitive and automatically locks after each setting is selected. The torque limiting feature causes the screwdriver to slip once selected torque is reached in order to avoid damage to the screw being driven. 【 Durable Construction & 100% Genuine Guarantee 】 Spring-loaded locking collar locks the scale when the torque is setting. Made of best materials which can reach the exacting tolerance. We provide you with quality assurance tools with 12 months of after-sales warranty support. Help you to achieve a satisfactory shopping experience.