Hammer breaks-floor and / or hammer drill with vibration damping.

The percussion hammer and / or perforation of the invention (10) consists essentially of a cover hammer (12) surrounding a rotor for a percussive tool (11) and includes the driving mechanism and the retaining element, and an outer shell (14) covering the hammer housing (12), at a certain distance. Said outer frame (14) is connected elastically with the cover of the hammer (12) at selected coupling, and is connected to a first handle (16) opposite to the percussive tool end (11), in the direction of impact percusiva said tool (11). The outer shell (14) extends as far as, or at least as much as almost the percussive tool (11), where it is provided or can be provided, a second handle (17) projecting said percussive tool beyond the cover hammer (12).