Grip Thread Pitch Gauge MM & SAE Markings - Measures Counts from .25 to 5.5mm and 4 to 42 SAE - 60 Degree Thread Profiles and Locking Devices - Garage, Workshop, Home
Use to provide the correct size of a drill bit, or can be used to size a fastener to determine what bit should be used with it. Heavy duty gauge steel. Measures drill bits from 1/16" to 1/2".
