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 drill bit, or to size fastener to determine what bit should to use..
- Measures drill bits from 1/16” to 1/2”..