The Lessmann Brake Caliper Brush, manufactured for the automobile industry and used for the cleaning of clogged lining deposits when changing brake pad linings. The brush is thin with two rows of straight wire filling and is manufactured this way to prevent damage to sensitive brake areas during use. Available in Steel or Brass. Length: 225mm (9in). 182.401: Straight Steel, Gauge: 0.35.182.451: Crimped Brass, Gauge: 0.25. The Lessmann Brake Caliper Brush has the following specification: Type: Brass, Gauge: Crimped 0.25.Length: 225mm (9in).