Premium Material: This SDS Max to SDS adapter is made of high quality chrome vanadium steel, a professional type of adapter, so the durability is absolutely guaranteed and you can use it for a long time Rustproof Surface: The surface of the SDS Max to SDS Plus adapter is cut by sandblasting, which can prevent rusting. SDS Max to SDS Plus Type: SDS Max to SDS Adapter Hammer Drill is a type of SDS Max to SDS Plus adapter that can be used for various items Meet All Your Needs: This SDS Max Hammer Drill to SDS Adapter is suitable for all common SDS Max drills, you can use it for different purposes according to your own needs Excellent Performance: SDS Max SDS allows you to use SDS plus drills in an SDS Max hammer drill, very practical to use with only one tool