Our brass backed reversible dovetail saw has a ~3/64" (1.3mm) kerf and 15 teeth per inch. With an overall length of ~9.8" (250mm). An offset/cranked handle gives your fingers room in tight places. Loosen the screw and flip the handle to the other end of the saw to flip from left hand offset to right. This also gives you the unique ability to switch from cutting on a pull stroke to a push stroke. The blade is offset making flush cuts easier and the solid brass back helps to keep you steady and straight.