PFERD stem-mounted miniature brush is perfect for precision applications required in many industries including jewelry, electronics, medical and aerospace. A wide selection of filaments includes: carbon steel wire, stainless steel wire (INOX) and brass wire, M-BRAD aluminum oxide impregnated nylon filament, and a variety of natural bristles. All brushes are mounted on 1/8" stems, and are recommended for use with flexible shaft tools and straight grinders. Set included 1 each:, 83202: 3/4" Carbon steel wire wheel brush, 83221: 3/4" M-BRAD filament wheel brush, 83231: 3/4" Natural bristle wheel brush, 83212: 1" Stainless steel wire wheel brush, 83223: 1" M-BRAD filament wheel brush, 83213: 1-1/2" Stainless steel wire wheel brush, 83257: 1/4" Carbon steel wire end brush, 83272: 1/4" M-BRAD filament end brush, 83279: 1/4" Natural bristle end brush, 83263: 5/16" Stainless steel wire end brush, 83273: 5/16" M-BRAD filament end brush, 83236: 9/16" Carbon steel wire cup brush, 83240: 9/16" Stainless steel wire cup brush, 83247: 9/16" M-BRAD filament cup brush, 83250: 9/16" Natural bristle cup brush.