| 摘要 |
PURPOSE: A brush including a surface treatment abrasive and a fixing jig are provided to prevent a nylon wire from breaking in polishing a metal, improve performance of the brush, and increase the pressing power of the wire. CONSTITUTION: A brush(100) including a surface treatment abrasive to precisely grind the surface of a metal has a brush wire(101). A core part(102) is installed to the brush wire. The core part is covered with an abrasive including abrasive grains(103) by a bonding agent. The brush wire is composed of double abrasive of a rectangle shape, around the core part. The brush is combined to a wheel brush. The wheel brush comprises a fixing ring for fixing overlapped brush wire; protective caps pushing the brush wire; and a fixing rivet. The brush wire is prevented from breaking in polishing a metal, by the improved polishing density.
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