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  1. Methow packer

    Stone washing CPMS35VN

    I’ve tried stone washing my tempered blades using ceramic triangular media ( from Harbor freight) in some soapy water. I’m using a larger vibrater. I’m not getting the results I would have hoped. Sure there is some texture there but not enough for me. I even vibrate over night. The results are...
  2. Methow packer

    Cryo treating my blade at a later date

    Many thanks for all your help. I’ve got one coming I’ve read somewhere that I don’t necessarily need to fill the 10L canister full. Does this mean the knife blade does’t need to be submerged completely and just suspended with the lid closed? How long should the knife be in the canister?
  3. Methow packer

    Cryo treating my blade at a later date

    I’ve been using my heat treat oven for cpm154 and s35 @ 1950 for 30+ min. Dry ice and kerosene over night and temper twice @ 400 deg for 2 hours each. I don’t know for sure the RC outcome but I’m hoping the steel is approaching 58-59. What does any body think it might be? I’m going to start...
  4. Methow packer

    Cryo treating my blade at a later date

    Thanks for answering so accurately. What you say makes complete sense and I knew it probably wouldn’t work. Can I use these CPM steels without cryo and still expect a reasonable RC hardness? 57-59 RC. Or is cryo and absolute requirement.
  5. Methow packer

    Cryo treating my blade at a later date

    I’m a semi pro knife maker using mostly high performance steels such as CPMS35VN and CPM154 for fix blades and my flipper-folder design. I live in a fairly remote community in eastern Washington. Dry ice availability for cryo treating is an hour each way. I try and get ready 3-4 knife blades at...
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