Benchmade's Rockwell Ratings
On some of bechmade's 154cm knives I've noticed the Rockwell rating is as wide as 58-61RC, like on the miniGriptilians. Edge retention and wear resistance is critiqued to no end on this forum, and the heat-treatment of a particular steel seems to be just as important as the metallurgical chemistry. I've always had good results with Benchmade's 145cm, but seeing as 56RC is considered to be soft and 64RC is very hard; a range of 4 points seems like a wide tolerance to me. At least wide enough so those variances would be noticed by some of the more scrutinous knife enthusiasts. Some other knives made with M4 and M390 have a range of 60-62. Much better to be sure. But still most other manufacturers can quote a range like 58-59, or within two figures.
I seriously doubt that a leading manufacturer like Benchmade is lax about the precision of their heat-treatment. And I, in no way, mean to criticizing them. So I wonder if Benchmade is simply being conservative with its ratings to account for semi-common externalities, the reality being that the vast majority of their products really are in the median of the rating. Or are other manufacturers overrating their precision? How finicky is the heat treating process? What are you're opinions on this, and how important do you think the heat treatment is?
I can't wait for my 707BK-1201 in M390, but seeing as I'm pretty good with my diamond stones I hope it's closer to 62 rather than 60.
"The unseen enemy is always the most fearsome" - George R.R. Martin, A Clash of Kings