Rules are simple measuring devices for fast and cost-effective measurement. For greater precision, a device such as a Vernier Caliper or Micrometer may be preferable.
Rules can also be used to measure the straightness of a surface with some degree of accuracy. For greater precision in measuring straightness and uniformity, a Straight Edge may be preferable.
High precision, bespoke manufacture of Rules to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.