产品描述：
3M Roloc Disc Products
Designed for use on portable tools and featuring the convenient Roloc Twist-on, Twist-off fixing system.
777F Cloth Discs
High performance disc with ceramic Cubitron abrasive mineral for use on stainless steels.
Maximum rpm. 25mm discs = 25,000rpm.
38, 50 & 75mm discs = 20,000rpm.