Starrett Micrometer, Caliper & Steel Rule Kit This Starrett Micrometer, Caliper & Steel Rule Kit provides accurate measurements with precision instruments. The kit includes an Starrett Dial Caliper, an Starrett Mechanical Micrometer and a durable Steel Rule, ensuring you have all the necessary tools for taking accurate measurements. Package includes the following... Starrett Dial Caliper # 120A-6 0-6" Measuring Range 0.100" Per Revolution 0.001" Graduations Starrett Mechanical Micrometer # T230XRL 0-1" Measuring Range 0.0001" Graduations Starrett Steel Rule # C604R-6 0-6" Measuring Range 4R Graduations Fitted Wooden Case