| STT P/N | Inducer | Exducer | Blade Height | Blade (L-S) | Mill Type | Direction |
| STT014 | 31.57 | 40.2 | 14.46 | 6-6 | Face mill | Clockwise |
| STT015 | 28.3 | 40.4 | 13.7 | 4-4 | Face mill | Clockwise |
| STT016 | 25.45 | 40.5 | 13.6 | 6-6 | Face mill | Clockwise |
| STT017 | 25.6 | 40.7 | 13.4 | 6-6 | Face mill | Clockwise |
| STT018 | 29.6 | 40.7 | 11.8 | 6-6 | Face mill | Clockwise |
| STT019 | 30 | 40.7 | 13.4 | 6-6 | Face mill | Clockwise |
| STT020 | 29.4 | 41 | 12.3 | 5-5 | Face mill | Clockwise |
| STT021 | 31.6 | 41 | 13.6 | 5-5 | Face mill | Clockwise |
| STT022 | 32.4 | 41.1 | 12 | 6-6 | Face mill | Clockwise |
STT023 | 29.2 | 41.3 | 12 | 5-5 | Face mill | Clockwise |
| STT024 | 29.6 | 41.5 | 11.4 | 5-5 | Face mill | Clockwise |
| STT025 | 31.9 | 42 | 14 | 6-6 | Face mill | Clockwise |
| STT026 | 31.9 | 42 | 14.2 | 6-6 | Face mill | Clockwise |
| STT027 | 32.1 | 42.1 | 14.2 | 6-6 | Face mill | Clockwise |