用兩層棉布加上一層麻布車縫而成，同時具備切削及一定程度的拋光能力，主要用在預備拋光的金屬制品上。我們應不同客戶的需要，將麻輪分為兩種：
　　A、 經過樹脂浸漬處理:輪身稍硬，更具切削力，壽命特長，運轉中自行冷卻。
　　B、 無經過樹脂浸漬處理:輪身稍軟，節省研磨劑，運轉中自行冷卻。
　　Bias Open Sisal and Cloth Buff (YOS)
　　One Layer of bias sisal sewed with  two layers of cotton cloth, provides it good cutting and polishing properties,  mainly used for  pre-polishing of metal ware.There are two types of OS:
　　A:With dip treatment in special resin: harder buff, better  cutting power,  extremely long service life, self-cooling during operation.
　　B:Without  dip  treatment in  special resin: softer buff,  saving   polishing   compounds,  self-cooling during operation.