
| T. | Needle thickness |
| B. | Working length |
| C. | Hook length |
| D. | Shaft height |
| E. | Hook diameter |
| F. | Hook wire thickness |
| G. | Length from throat to Shaft upperside |
| H. | Butt height |
| V. | V.Height of cheek |
| M. | M.Latch motion |
| N. | N.Latch spoon height O.Overall Length |
| VK. | VK.Spring height P.Height of closed latch |
| R. | R.length from front side of front butt to throat |
| Z. | Z.Spring length L.Shoulder heinght |
| U. | U.Length between head end and point of closed latch |
| J. | J.Butt width |
| Soosan | Rumi |
| Betex | Lonati |
| Nagata | Cimat |
| Irmac | Sangiacoma |
| Saviomatec and many more |