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Yes the MK 22, 23 are wedges, 24 is a 1/4 hollow .
Google heljestrand size chart.
It will correlate number to grind and size of blade.

[QUOTE=Phrank;1591782]The last of my recent RAD obsession should be here tomorrow, took a chance, fully expecting that I'm not going to score on this one, but for the Buy It Now price of $125.00,...

Wow Thats a big one. Found a couple a while back. One has no markings on the back except " stainless". Both are fine shavers, lightweight in the hand but speedy in the shave. MK04 I caught the wife...