Model number: Metric and Imperial, Individual and set
Metric size range: 0.1mm-100mm. Incremental step: 0.01mm, 0.02, 0.025, 0.05, 0.10, 0.50, 1.0 and so on. Precision: ± 0.001mm, ± 0.002, ± 0.005
Imperial size range: 0.011in-2.000in. Incremental step: 0.001in, 0.0005in and so on. Precision: ± 0.001mm, ± 0.002, ± 0.0025, ± 0.05

Material: Steel(GCr15, 9SiCr), ceramic, tungsten carbide and so on
Roughness: Ra0.25, Heat treatment: To HRC60-63, Dia precision: ± 0.001mm or ± 0.002, Roundness: 1.27um
Stamp: Laser marking size, size is quite clear
Identity: Each set has a certificate, to state the accuracy of each size.
Finish: Smooth to 10 micron or better
Uniform: 2''length or 50mm

Can be held 100PCS or 200PCS per case
Be used for checking hole diametre&distance between hole and hole location.
Sizes are marked on storage case
Can be also fabricated all kinds of non-standard pin gauge. (such as 3 decimal place or 4 decimal).