#812 Folding All-Purpose Saw is designed for professional craftsmen on the go who demand the most from their tools. The chrome plated blade locks firmly into the open position for use and then tidily folds to fit neatly in your pocket or tool box.. The razor sharp teeth are impulse hardened ensuring a clean, crisp cut with extended durability. Every ninth tooth is a rip tooth so it can be used for all kinds of cuts. The sturdy cast aluminum handle is covered with a flexible elastomer plastic with excellent durability and ventilation to reduce user fatigue. The #812 Folding All-Purpose Saw is specifically designed for use wherever a smooth, clean cut is desired. With 11 teeth per inch, it easily copes with every big job from general lumber, plywood and hardboard to PVC pipe. Blade thickness is 0.030. Blade length is 9¾. Overall open length is 18½. And folded length is 11. Handle Color may vary. Replacement Blade is #155643. Blade #155665 and 155647 will work also.