- Thread Detective Thread Identifier Tool
- Standard size with both Metric and Inch(SAE) sizes
- Can check both nuts and bolts
- Laser marked sizes that won't rub off
- Stainless Steel
- 9 Inch and 12 metric sizes
- Includes attached Inch and metric length identification card
Small Size Thread Identifiers contain nut and bolt sizes in inch sizes of:1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48, and 5-40 as well as metric sizes M1.2x0.25, M1.6x0.35, M1.6x0.20, M1.8x0.35, M2x0.40, M2x0.25, M2.5x0.45, M2.5x0.35, M3x0.35, M3x0.50, M3.5x0.60, M3.5x0.35.