| The Large Diameter BoltSize-It Gauge is used for: |
| Sizing large diameter nuts, bolts, studs & washers |
| Metric and inch dimensions |
| Size washers from ¾” to 3 ¼” & 20mm to 80mm |
| Size studs & bolts from ¾” to 2” & 20mm to 50mm |
| On the reverse side you can size UNF & UNC nuts from ¾’ to 3’ |
| Also on the reverse side you have a head id chart for inch & metric head markings |
| Very useful and durable tool. |
