The new and improved classic Bergeon JAXA tool. For opening most types of screw watch case backs. The tool comes with four sets of points designed to match the various types of watch screw backs. The tool and accessories come in a purpose built plastic box with compartments for the tools, spare points and a metric ruler. It is worth investing in a quality Bergeon JAXA tool to reduce the chance of slipping and therefore scratching/damaging a watch. Replacement points are available.