This tool set is a must for any owner. This is a combination of three tools: 46/40mm socket, Chain Adjusting Tool, Front Axle Alignment Tool. Because they are aluminum, the tools are light weight, and will not damage your bike parts, but will last a lifetime! These tools are brand new. A must have tool set for anyone working on a Ducati: 748, 916, 998, 996, S2R/S4R, Monster 1100, Hypermotard, Multistrada.