I have seen many versions of this hammer with many different mfg names. I believe that this is a China copy of a hitachi hammer. No parts are available for this tool. The tool looks substantial from the outside, however internal parts are weak and break/burn out very easily (unlike the Hitachi/Japan version which is a workhorse, years of use before failure). If your hammer is china version, do not invest any more money because other parts will start to fail (most fail within short time from motor burn or broken parts ).
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