Locht but the ergonomics are poor.

Punching does the punch Although reliable. However, since the springs are too strong, it is uncomfortable when you have to punch a lot.
You have to spend a lot of power, you do not feel when the punch has punched through, one is compelled by force through until it stops.

Material quality is good but the operability is bad. Do not understand why nobody has objected, seen here throughout much positive feedback, which m. M. n. Is too high.