| Model No. | Standard | A | B | C | Part No. |
| KF-FN-16 | 3A | 50 | 19.05 | 30 | 61250103-0016 |
| KF-FN-25 | 3A | 50 | 25.4 | 40 | 61250203-0025 |
| KF-FN-40 | 3A | 50 | 38.1 | 55 | 61250303-0040 |
| KF-FN-50 | 3A | 50 | 50.8 | 75 | 61250403-0050 |
