EZPB1: the EZE-LAP is a hand held block fitted with two honing stones course and fine, which can be used to sharpen the planer/jointer knives/blades. This is an excellent product to add to the workshop accessories, as it is designed to allow you to sharpen the planner blades without having to spend the time stripping and removing the blades from the machine, an excellent time saving device, or if you find it difficult to remove and then re-align the blades back into the machine