Plate-like backing pad adapted for releasable attachment to a hand-held polishing or sanding power tool

A plate-like backing pad (20) adapted for releasable attachment to a tool shaft (28) or an eccentric element (30) of a hand-held polishing or sanding power tool (2), the plate-like backing pad (20) comprising:

• a center axis (34),
• a top surface (50) limiting the plate-like backing pad (20) in a top direction,
• a bottom surface (56) limiting the plate-like backing pad (20) in a bottom direction,
• a damping layer (52) made of an elastic or resilient plastic material, including polyurethane, and located between the top surface (50) and the bottom surface (56),
• an even bottom layer (22) attached to the bottom surface (56) and adapted for releasable attachment of a polishing or sanding member (24), and
• an attachment member (38) having a central recess (40) with a non-rotationally symmetric inner circumferential surface (42) provided in the top surface (50) and adapted for releasable attachment to a corresponding attachment element (32) of the tool shaft (28) or the eccentric element (30) of the hand-held polishing or sanding power tool (2),
• wherein
• the top surface (50) has a central region (58) extending around the center axis (34) and is surrounded by, and recessed with respect to, an external region (60) so as to form a depression (76) below a horizontal plane (96) defined by the external region (60), the central region (58) and the external region (60) both being part of the top surface (50) and limiting the plate-like backing pad (20) in the top direction, and
• the attachment member (38) is provided in the central region (58) of the top surface (50) in the depression (76) entirely below the horizontal plane (96) defined by the external region (60) of the top surface (50) with the center axis (34) extending through the attachment member (38) and the central region (58) surrounding the attachment member (38).