Genuine Bosch replacement hammer piston designed to transfer the mechanical drive force within the hammer mechanism, helping generate the impact action required for drilling and chiselling. This hammer piston is suitable for the listed Bosch GBH 12-52 D and GBH 12-52 DV rotary hammers.
Caution: Please check your exact Bosch machine type number against the parts information before ordering to ensure this hammer piston is correct for your machine.