This is the ergonomic version of the popular 8140 semi-flush cutter.Made from an advanced forging with carbon-chrome ball-bearing steel and have a cutting edge hardness of 63-65 Rockwell C. The precision ground joint and adjustable screw-nut assures uniform wear without "play" for the life of the tool. An adjustable handle spring and a series of vertical ports allows you to change the width and tension of the tool to fit your individual physical requirements. The ergonomic handle is slightly rounded and wide, creating excellent surface distribution. These tools are ideal for repetitive work as less force is needed during cutting.