- Excellent for sizing bolts, screws, nuts (USS, SAE, and Metric) and twist drills
- Size bolt diameter by pushing bolt through sizing holes
- Gauges hex nuts and washers (USS, SAE)
- Gauges metric hex nuts and washers by holding under metric holes
- Measure US and Metric thread pitch
- Special notch gauges flat headed metal and wood screws
- Ruler marked with inches and millimeters for worldwide use
- Resists water, alcohol, oil, and grease
- Reliable and Accurate
- Sturdy and Lightweight Plastic
- Fits in Shirt Pocket (8-5/8″ x 3-1/4″ or 217mm x 82mm)
