Abstract: A fence device includes a coordinate system for providing accurate positioning of a workpiece along two perpendicular axes. Precise repeatable positioning of the workpiece relative to a given reference point is achieved. Two or more separate calipers are used for the positioning. The device includes parallel channels along two opposing edges of a table top. Channel guides along edges of a fence engage the channels for movement of the fence toward and away from a cutter bit or other material removing tool. A first caliper determines the distance that a workpiece may be moved when engaging the cutter bit. The location of a workpiece along the fence is determined using a second caliper perpendicular to the first caliper. A slide plate is secured at right angles to the fence and uses the second caliper to accurately position the distance of the fence with relation to the tool.

Abstract: A device comprising a swivel mount and its method of use are described. The device can be used in pairs with a variety of different power tools useful for working on metal or wood. The purpose of the tool is to insure a precise linear alignment between the measuring device and the moving part of the power tool that removes material from the wood or metal. The swivel mount includes a mounting block, a ball shank, and a swivel body mounted on the ball of the shank. The swivel mount attaches to one portion of the measuring device that is linearly adjustable with respect to the material removing part of the power tool. A second swivel mount attaches to a portion of the power tool that maintains a fixed distance with respect to the moving part of the power tool.