GB m4 vs spyderco m4

R

rcasso4

Joined
Jan 11, 2019
Messages
2
Hello,
I have a gayle bradley folder in m4. By now, the blade has a wonderful patina. The GB spyderco blade, also in m4 however does not develop a patina. In a phone call to GB long ago, he told me that the only difference between the two his heat treat and that of spyderco was a cryo treatment by spyderco taiwan. Is that it?
 
Specific HT can make a pretty big difference in how the same steel acts. I've found Spyderco M4 doesn't take a heavy patina, but you get some nice rainbow coloring.
 
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