| Model | Flex | Weight (g) | Spin | Launch |
| Project X .355 | 5.0 | 110 | Low | Low |
| Project X .355 | 5.5 | 115 | Low | Low |
| Project X .355 | 6.0 | 120 | Low | Low |
| Project X .355 | 6.5 | 125 | Low | Low |
| Project X .355 | 7.0 | 130 | Low | Low |
| Project X .370 | 5.0 | 110 | Low | Low |
| Project X .370 | 5.5 | 115 | Low | Low |
| Project X .370 | 6.0 | 120 | Low | Low |
| Project X .370 | 6.5 | 125 | Low | Low |
| Project X .370 | 7.0 | 130 | Low | Low |
Project X Chrome shafts incorporate Stepless Design Technology (SDT) where each individual shaft throughout the set is comprised of a specific taper length. This unique design feature optimizes the flex distribution and energy transfer of the shaft without sacrificing control. SDT provides tip stiffness for stronger players, producing greater accuracy, a smooth yet solid feel on impact and optimal trajectory and spin control.