CPM-M4 semi-custom knives incoming

Derek Bergstrom

Derek Bergstrom

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Mar 5, 2014
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(Thanks zknives knife steel composition chart app)
Why Cpm-M4? The powder Metallurgy process Gives a knife a refined and pure grain structure which increases its strength, toughness and edge retention. It can be a couple points harder with the same toughness than a non powder form of the same steel. M4 is tougher and more abrasion resistant than D2 (just for example of a popular good steel, which i am a fan of) but not quite as rust resistant. However for sharpening it seems to be just as easy as a carbon steel. It is not a chippy steel, it can be maintained for simple tasks with a strop. I own a factory made folder in M4 That ive been cutting double layered corrugated cardboard with here and there every day for 2 months and with my buffing wheel or a strop have kept it hair whittling sharp. . High speed steels are made to cut other steels, and i user this knife in a vice on some heavy gauge wire and it did damage it some but not enough to grab phonebook paper. Ive used it for some can opening and some prying and i havnt pushed it super far yet indestructive testing, but im waiting to do that with my own knife.
 

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Hello Bladeforums! Im back with a paid membership now and life is slowly coming together in our new house and a healthy 6 month old baby. Ive been dreaming and grinding away and ordering steel and am having some blanks waterjet cut, which will be sent to Peters heat treat for once theyre done. I currently have G-10 and Micarta handle materials ill be attaching, and duracoating some. This post is a prototype intro to some models that will be coming In CPM-M4 high speed steel, and ive had made a couple out of other tool steel for testing i can share. Kydex or leather sheaths.



This is the nightstalker, after the worlds deadliest scorpion. A useful utility knife with a full flat grind. Will be selling around $225.




Next up at a stout 5/16ths thick and 2 inches wide with a 7 inch blade is the destroyer. As ive enjoyed my adventures with my big knives i needed to make one. this bead blasted one is at peters right now, ill post pics when done. Due to the expense of dealing with larger material, will be selling for $275-325 range



Lastly the 3/16ths inch thick Mini-Kukri has a 3/16ths thickness and about 6 inch blade length. recurves are hard to flat grind evenly but im going to try.

I also sell dymondwood strops for $15

 
I did, sorry i double posted, it was taking a long time to load so i clicked preview post and did some changes, then posted again not realizing the first was already up
 
From Mn? my best friends getting married in duluth in august. i have four more pieces of the destroyer stock ill start working onwhen i get mine back
 
Hey everyone, feedback welcome. these are not one of a kind work of art pieces, im trying for consistency and establishing a "model" and hopefully producing many. I Got my chem etch stencils in today so ive been playing with that
 
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