Satin Finishers have nylon heads impregnated with various abrasive grits for cleaning and obtaining matte finishes on metal or plastic. Felt and cotton buffs are used for buffing and polishing with compounds on hard and soft metals, metal plate, precious metals, plastics, wood, acrylic, and painted surfaces. 22 mm (.866?) diameters. Includes: Muslin Buffs– Yellow, Natural, Snow White; Suede Wheel Brown 5-Layers; Cotton String Buff 2-layers; Cotton Mop; Felt Buff 3-Layers; Fiber Buffs: Light Red–Coarse, Tan–medium Coarse, Dark Red–Medium, Gray–Fine, and Green–Extra Fine. Extra fine, medium and coarse Satin Finishers have nylon heads impregnated with abrasive grit. Use to clean and obtain matte finishes on metal or plastic surfaces. 25,000 Maximum RPMs. Mounted Satin Finishers have 3/32? (2.35mm) shanks 1? diameter heads x 5/8? thick 2? overall length