钢丝刷是一种针对不同用途选取相应的型号钢丝，选取不同的钢丝直径的刷子，钢丝有直丝和波纹丝两种，丝的粗细可根据不同的需要而定。直丝和曲丝两种。
Wire brush is a kind of brush that chooses the corresponding type of steel wire for different purposes and different diameter of steel wire. There are two kinds of steel wire: straight wire and corrugated wire. The thickness of wire can be determined according to different needs. Straight filament and curly filament are two kinds.
直丝适合于钻孔植毛方式的刷子较多，如木板钢丝刷，木柄钢丝刷，圆盘钢丝刷等；而曲丝应用范围基本上每种类型的钢丝刷可采用，特别是弹簧钢丝刷辊非曲丝不可，用直丝的话，钢丝对折后根本就不可能规范、整齐，而曲丝由于它本身的弯曲度在制作时可相对吻合附近的刷丝，这样对折后的钢丝即使不对称、倾斜度稍偏也看不出来，并且这样环绕而成的刷辊表面钢丝更显得密度高、结实、除锈回弹力度大。