Calipers are precision measuring tools used in MRO and automation industries for accurate dimensional measurements. They come in various types such as Vernier, Dial, and Digital calipers, each offering different levels of precision and ease of use. Common applications include measuring internal and external dimensions, depths, and steps. Key features often include stainless steel construction, ergonomic designs, and IP ratings for durability in industrial environments. Typical products in this category might include Mitutoyo digital calipers, Starrett Vernier calipers, or Fowler dial calipers, with measurement ranges from 0-6 inches up to 0-24 inches for larger models.