Nut & Bolt Thread Checker (Inch & Metric), Original Version (SWTC-26)
- Each Size Has A Nut And Bolt Checker On The Same Gauge. 26 Male/Female Gauges - 14 Inch & 12 Metric.
- Thread Sizes Are Permanently Stamped Onto Each Gauge (Inch In Red, Metric In White).
- Inch Gauges Are Clear Zinc Plated, Metric Gauges Are Black Oxide.
- The Individual Gauges Rotate Freely On The Wire Cable For Fast Thread Verification.