The adjustable click torque wrench features an external adjustment torque scale, which allows an operator to quickly adjust the torque setting on the tool as needed for different applications. The cost effective click wrenches are durable and robust for a wide variety of industrial fastening applications. Our EPT adjustable click torque wrench is built with high quality materials to ensure low repair frequency and less repair costs. The preferred and certified ranges of these tools is in accordance with the requirements of ISO 6789 (+/- 4% of indicated setting). Note: After being used, adjustable click torque wrenches should be turned back to minimum scale value. This helps to preserve the springs and ensures a longer product life cycle with high precision. Model:EPT550F Drive Size:3/4" Sq. Dr. Range : 183 - 779.5 N.m ,110 - 550 lbf.ft. Graduation Scale (American):2.5 Graduation Scale (S.I.):5 Tool Weight:12.6 lbs. Tool Length:44.25