Bosch 2607000982 Chuck Keyed 1.5 to 13mm with SDS-PLUS Adaptor & Key
Type: Keyed chuck 13mm & SDS-plus adaptor. TheseKeyed Chucks from Bosch have a 1/2in. X 20 UNF thread fitting and are supplied with a key. During that process you will be issued with an RMA number.