The Gatco 12001 Easy-Grip Clamp is a useful addition to the Gatco sharpening system. It holds the sharpening guide, but there is slight "play" in the mount. I can live with that and love the Gatco system. I'm having major trouble getting the blade firmly into the Gatco jig. I find it difficult to attach the knife blade and tighten the small screw. You may need to replace the screw with a different type.