This Sealey BLACK 3/8"" Sq Drive Calibrated Torque Wrench (Model: AK623B) is part of the Premier Hand Tools range, suitable for daily professional use. It features a heat-treated steel ratchet head that is fully hardened and tempered, with an electrodeposition finish for corrosion resistance. The calibration tolerance adheres to BS EN ISO 6789-1:2017, and each wrench is tested and supplied with an individually numbered test certificate. It has a micrometer type torque range adjustment with a scale graduated in both lb.ft and Nm, and a flip reverse ratchet mechanism. The wrench includes a storage case and has a drive size of 3/8""Sq. Its length is 365mm, with a range of 7-112Nm (5-83lb.ft). It also comes with a lifetime guarantee.