Design: Sturdy, compact, single-arm torque wrench, pre-settable according to scale and self-releasing. The accuracy remains consistent over tens of thousands of applications, as high-quality materials are used for all wear parts and the bending rod is only briefly stressed during operation. Housing and handle made from durable rectangular tubing. Scales are adjustable. Left-hand tightening by repositioning the insert tools. Without insert tool (basic model); compatible insert tools No. 657582 − 657950. Note: The guaranteed measurement accuracy of the torque applies only from the calibrated torque range according to DIN EN ISO 6789. Advantage: Ergonomically shaped 2K handle, resistant to aggressive liquids such as fuels, Skydrol, etc. Adjustment scale protected from dirt and damage by a viewing window. Quick, precise, and secure adjustment: pull the adjustment knob, rotate to set the desired value, and press to secure. Easy movement of the adjustment knob, as no spring force needs to be overcome.