270 Randmuffe
| Size | Inch | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 11/4 |
| mm | 6 | 8 | 10 | 15 | 20 | 25 | 32 | |
| Dim. (mm) | A | 25 | 27 | 30 | 36 | 39 | 45 | 50 |
| Size | Inch | 11/2 | 2 | 21/2 | 3 | 4 | 5 | 6 |
| mm | 40 | 50 | 65 | 80 | 100 | 125 | 150 | |
| Dim. (mm) | A | 55 | 65 | 74 | 80 | 94 | 102 | 110 |