Hitachi WH 12DH Technical Data And Service Manual page 13

(3) Optional accessories for the Models WH 12DH and WR 12DH
Holster (Code No. 307824)
Use the holster to hold the unit during its operation.
Carefully read the warnings attached to the holster for safe use.
Hook (Code No. 308090)
Use the hook to hold the unit during its operation.
Carefully read the instructions that come with the hook to learn how to use it.
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