Thread pitch size is stamped on each gage. Metric, unified and Whitworth screw pitch gages.

MITUTOYO 950-253 Screw Pitch Gage Unified
Description
Specifications
Brand Name | Mitutoyo | Item Name | Screw Pitch Gage |
Type | Unified | Number of Blades | 51 |
Material | Steel Case with Folding Leaves | Size | 4 - 84 TPI |
Packages
EA - 1 EA PER EA |