Support BladeForums! Paid memberships don't see ads! I have an INFI ASH1 with the Double Cut Bead Blast (DCBB) finish. As far as I know the knife is unused (except for what appears to be several fine sheath scratches). If you hold the blade at the right angle in the right light, there appears to be a very slight discoloration in parts of the finish – it might just be unevenness or wear in the finish, or maybe the previous owner used a wax or oil on it, I'm not sure. I cleaned it with soapy water (Dawn dish soap), Flitz Matte Finish Cleaner, 91% rubbing alcohol and finally acetone, but the discoloration is still present. What do you recommend using to clean a DCBB finish to remove any traces of oil, wax or anything else? Thanks!