The Olsa 1/2-inch Split Beam Torque Wrench is effortless to use due to its torque setting mechanism. It has a sturdy clockwise ratcheting mechanism, ideal for industrial use. The torque setting range is from 50 to 250 foot-pounds. The "knob" type torque adjustment is much easier than a standard rotary knob; its gear guard contains a locking feature, so no worries about changing the setting accidentally! It is accurate to +/-4% over the entire torque range. When the desired torque value is reached, there is a distinct click and separation at the connection, preventing over tightening and breaking the bolt. The TPR protected handle provides comfort, easy operation and oil resistance. It is made of industrial chromium vanadium alloy for long life in heavy-duty applications.