Merkur Progress 510 (Current Version)

This is the current version of the Model 510. It's the same razor as the Model 500 HERE with a longer handle.
It's designed as a two piece. The adjuster knob is held in with a compression ring and pulls out very easily. They have kept the same head and added a longer handle and made a longer twist knob.

 
Merkur Progress 510 Merkur Progress 510 Merkur Progress 510
Merkur Progress 510 Merkur Progress 510 Merkur Progress 510
How does it shave?
Merkur Progresses are great everyday shavers. My preference is shorter handles but if your's is a longer handle this would suit you.
The go from pretty mild to middle medium at 6. They then can be overclocked on the fly if more is needed.
Merkur Progress 510 SOTD Merkur Progress 510 SOTD Merkur Progress 510 SOTD