Abstract: A method for balancing disc blades comprising the steps of: determining the initial position of the center of mass of the disc blade to be balanced with respect to its main axis; calculating/determining the number, the position and/or the dimensions of one or more balancing holes eccentric with respect to said main axis and necessary for removing an amount of material sufficient to bring the center of mass of the disc blade at a distance from the main axis lower than a predetermined maximum limit value; and forming said balancing hole or holes on the central disc in an eccentric position with respect to said main axis. The method improves the producibility of disc blades.

Abstract: A router bit case that includes a bottom half that having a plurality of router bit-shaped recesses with a substantially flat bottom surface that includes a sloped portion and a deepened cavity. The router bit case also includes a top half having a plurality of recesses formed therein, a plurality of hinges and a closing device.