Abstract: A portable tool of the basic type generating vibration during operation is improved by the provision of a hollow insert into the cavity or space of the handle that is filled with shock-absorbent material. The insert opens at the front of the handle and is internally threaded to receive the externally threaded rear part of the barrel, for example, of an accessory or attachment, such as a chipper, chisel or the like. A separable lock is provided for preventing accidental unscrewing of the barrel.

Abstract: A portable, hand-held tool of the type generating vibration during operation is improved by a construction in which the forward barrel-like part of the tool is embraced by an elastomer-filled cavity or cup in a barrel-related handle, the handle and barrel being typically rigid but separate and secured together by only the elastomer material. The cup-like part of the handle surrounds the rear part of the barrel to afford an annular space, which is filled with initially flowable and subsequently curable elastomer, notably of polyurethane. The base or radial rear wall of the cup is spaced to the rear of the radial rear end of the barrel and this space is contiguous with the annular space and is also filled with the elastomer material. This wall has a through opening to allow for temporary deformation of the elastomer during operation of the tool.