These Non-Sparking Drift Cylindrical 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.
| Φ mm | Φ1 mm | L mm | Weight (g) | |
| Aluminum Bronze | Beryllium Copper | |||
| 3 | 9 | 110 | 15 | 20 |
| 4 | 10 | 110 | 50 | 57 |
| 6 | 12 | 115 | 95 | 105 |
| 8 | 14 | 120 | 115 | 130 |
| 10 | 16 | 145 | 180 | 200 |
| 12 | 18 | 160 | 260 | 280 |
| 14 | 20 | 180 | 380 | 410 |
| 16 | 24 | 200 | 600 | 640 |
| 18 | 30 | 225 | 960 | 1070 |
| 20 | 32 | 225 | 1110 | 1230 |