3PCS Center Gauge Set: Whitworth 55°: Front measure increment (in Inch): 1/14inch and 1/20inch; Back measure increment (in Inch): 1/24inch and 1/32inch. - US 60°: Front measure increment (in Inch): 1/14inch and 1/20inch; Back measure increment (in Inch): 1/24inch and 1/32inch. - Metric 60°: Measure increment (in Metric): 0.5mm and 1mm.
High Quality: All the thread pitch gauge are made of stainless steel, heat processed with chrome finish, high strength, good resilience
Wide Application: Typically used to check the mold & machine & mechanical thread size determination is correct; Accurately measures internal and external screw threads with thread blades of varied size; Center Gauge use to grind and position thread cutting tool on a lathe.