Abstract: A vibration insulated power tool handle, comprising a tubular grip portion (10), a mounting means (11) for rigid mounting on a tool housing, and an elastic vibration insulating leaf spring membrane (12) interconnecting the grip portion (10) and the mounting means (11). The spring membrane (12) is formed with a central opening (19) for receiving a screw (21) of the mounting means (11) and is connected by its periphery to a socket portion (16) on the grip portion (10).

Abstract: A vibration damped hand held rotary grinding machine comprising a housing (10) with at least one handle (17, 18), a rotation motor (11), an output shaft (13) drivingly coupled to the motor and having a mounting (14) for attachment of a grinding wheel (15), and a sector-shaped non-resilient safe guard (19) which is rigidly attached to the housing (10) and surrounding partially the grinding wheel (15) and which has an arc-shaped rim portion (20) encircling partially the grinding wheel circumference. A vibration damping inertia device (22; 22a, 22b) is rigidly associated with the safe guard (19) on or adjacent the rim portion (20), such that the center of gravity of substantially all axial plane cross sections through the inertia device (22 22a, 22b) is located at a radius (R.sub.1) of at least 90% of the rim portion (20) radius (R). Preferably, the safe guard (19) is semicircular and th einertia device (22; 22a, 22 b) extends from both ends of the safe guard rim portion (20).