Abstract: The present invention relates to a apparatus and method for sharpening rotary tools which includes a base for supporting a housing and a slidable table. The housing includes a motor which drives a grinding wheel located at the end of the drive shaft. A sleeve is pivotally mounted on one end of the slidable table. A toolholder which holds the tool to be sharpened is placed and is slidable within the sleeve. A spiraled cam is attached to the toolholder. A guidepin, supported by the sleeve, rides within the spiraled groove of the cam to rotate the toolholder such that the tool will be sharpened along a spiraling blade. A pointer is supported by the sleeve for marking each successive point at which the tool will strike the grinding wheel as the toolholder is advanced within the sleeve toward the grinding wheel.