These Non-Sparking Double End Bung Spanner are made of Aluminum Bronze and Beryllium Copper, it is a high quality grade beryllium copper alloy material and a standard grade aluminum-bronze alloy. These tools are non-magnetic and non-corrosion, very suitable used for LPG and LNG vessels, and oil-gas industry etc.
| L mm | H1 mm | H2 mm | Weight (g) | |
| Aluminum Bronze | Beryllium Copper | |||
| 350 | 70 | 95 | 1070 | 1165 |