| 摘要 |
<p>To provide a compact disk holder which is superior in strength and at the same time can completely fit in existing covers. A disk holder (1) including an internal threaded portion (15) into which is able to be screwed an external threaded portion for attaching the disk holder to a disk grinder (G), a holding surface (5) able to hold by a planar fastener (11) a circular abrasive sheet (79) having a center hole, and a projection (7) for passing through and engaging with the center hole of the held abrasive sheet (79) and further able to prevent detachment of the abrasive sheet, wherein said projection (7) is formed by a metal, said holding surface (5) is formed by a plastic, and said internal threaded portion (15) is formed in said projection (7) so that the dimension of the disk holder (1) in the thickness dimension is reduced.</p> |
