EP also sells gear tooth measuring units referred to as equipment gauges! Gear gauges lessen errors, conserving time and cash when identifying and ordering gears. These pitch templates have nine teams to figure out all normal pitch dimensions: Diameter Pitch “DP”, Circle Pitch “CP”, External Involute Spline, Metric Modulus “MOD”, Limited Tooth, Wonderful Pitch, Coarse Pitch and Extraordinary Pitch .