Grip Thread Pitch Gauge

Use to provide the correct size drill bit, or to size fastener to determine what bit should to use. Heavy duty gauge steel. Measures drill bits from 1/16 to 1/2 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.