Our SDS Max to SDS Plus adapter is made of high-quality chrome vanadium steel, with a professional adapter, the durability is fully guaranteed. Allows any SDS plus drill bit to be used with the SDS Max hammer drill. With this adapter, you only need one SDS-Max hammer to use all sizes of SDS-Max bits as well as SDS-Plus bits, no need to buy another SDS-Plus hammer. The surface is sandblasted to help prevent rust. And long-term use for all common SDS Max drill bits according to industry testing standards. The quick-release collet securely holds all sizes of SDS-plus bits and is easy to insert and remove. Drilling is precise and easy with this adapter. Type is SDS Max to SDS plus adapter. You can use it for various purposes according to your needs