52100, how do I reach max hardness without chipping?

I'm a knife collector & not a knife maker, so I just wanted to add that while I don't fully understand what Stuart is explaining, I know that he's right on because I own two of his creations, one in 52100 & the other in CruForge V I believe, and my baby girl caused one of them to fall onto a granite counter (yes, I do always blame my children for everything). The tip bent past 90 degrees & I was able to bend it back to its original position perfectly - it's a thin slicing knife, so the knife will never be put into a tip strength testing scenario (purposely), but I can say that the knife is still every bit of the slicer/dicer it was before the Humpty Dumpty episode. Stuart knows of what he speaks!
 
VanDammet, I was SO glad that tip bent back straight, what a thin blade that one has!

I'm pretty sure Luong knows his stuff WAY more than I, but the problem is I have hell deciphering his posts. Ha Ha! And, yeah, John, that CFV at 60 or above is a real pain to hand sand. You know, I found Blue 2 and O7 to be just as bad. Working on hand sanding 1.2442 (Stuartsmelt), I tempered at 375 so guessing 62HRC. NOT FUN AT ALL.
 
Yeah, the 1.2442/115W8 is fun. If you look at the numbers, it is pretty much like Blue #2 with maybe 30% more tungsten.
samuraistuart said:
VanDammet, I was SO glad that tip bent back straight, what a thin blade that one has!

I'm pretty sure Luong knows his stuff WAY more than I, but the problem is I have hell deciphering his posts. Ha Ha! And, yeah, John, that CFV at 60 or above is a real pain to hand sand. You know, I found Blue 2 and O7 to be just as bad. Working on hand sanding 1.2442 (Stuartsmelt), I tempered at 375 so guessing 62HRC. NOT FUN AT ALL.
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