This Pocket Folding Blade Saw is perfect for cutting siding, hardboard, MDF and other similar materials. Because it cuts on the pull stroke and has very sharp teeth, the saw can easily make clean cuts. The chrome plated blade is made from SK-5 high carbon steel with well sharpened teeth and locks into one of two open positions for greater cutting efficiency. The ABS resin handle offers a comfortable, sure grip for extended use in difficult conditions. If the blade ever becomes damaged or becomes dull, it can be easily replaced. Blade thickness is 0.7mm with 16 teeth per inch. Blade length is 5", and folded length is 6".