A hand held tool consisting of a square elongated block (20) having an angular groove (22) on the top with an abrasive surface (24) disposed upon the top and groove (22). An automotive type windshield wiper blade is placed in the groove (22) and rubbed back and forth abrading the surface of the blade thereby eroding the material in a controlled manner to renew the tip that is in contact with the windshield. Another embodiment utilizes the same block (20) except the groove (22) has a cutting blade (36) inbedded therein slitting the workpiece on the end renewing the wiping surface. Still another embodiment utilizes a pair of round rods (40) in parallel relationship allowing a fresh unused portion containing the abrasive surface (24) to be exposed prolonging the utility of the tool.
