I recently bought a Wentworth's No. 1 saw vise to replace a wooden shop-made vise I've been using. It works quite well but I'm wondering what the dovetail slot in the movable jaw is for. It runs the length of the jaw below the gripping surface--see photos. Anyone know what the slot is for? The vise seems to grip very well as it is with nothing in the slot. Just wondering why it is there. Thanks
saw vise jaws1.jpgvise closed jaw.jpg