These Non-Sparking Manual Impact Screwdriver Set 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.
| Size | PCS | Weight (g) | |
| Aluminum Bronze | Beryllium Copper | ||
| 8*70 | 2 | 750 | 825 |
| PH4*70 | 2 | ||
| 8*30 | 1 | ||
| PH4*30 | 1 | ||