Abstract: Apparatus for holding a drill bit to be sharpened comprises a chuck having jaws which ride in guide grooves for accurately centering the drill bit. The chuck is formed on a conical end portion of a cylindrical, rotatable element, and is capable of accurate alignment by economical manufacturing methods. The chuck also carries a cam surface for producing reciprocative motion to the drill bit. The rotatable element is mounted for pivotal motion about a horizontal axis and a second axis normal to the horizontal axis.

Abstract: An accessory for an electric router which facilitates edging, trimming, groove cutting, and the like, on small workpieces. The accessory features a two tier construction, the workpiece being positioned on a work table pivotally mounted to the lower tier, while the router is vertically mounted on the upper tier. The upper tier is vertically movable with respect to the lower tier to accommodate the workpiece therebetween. The upper tier comprises a pair of parallel guide rails along which the router may be slidably moved through the workpiece. In an alternate mode of operation, the router may be securely clamped to the guide rails and the workpiece pushed along the work table through the router bit by a safety tool.