These Non-Sparking Driver Extension 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.
| C Inch | L mm | Weight (g) | |
| Aluminum Bronze | Beryllium Copper | ||
| 3/8 | 75 | 80 | 93 |
| 3/8 | 150 | 160 | 185 |
| 1/2 | 100 | 225 | 245 |
| 1/2 | 125 | 230 | 260 |
| 1/2 | 200 | 330 | 365 |
| 1/2 | 250 | 425 | 470 |
| 3/4 | 200 | 770 | 855 |
| 1 | 200 | 1380 | 1525 |