zyhano
Gold Member
- Joined
- Dec 3, 2009
- Messages
- 1,593
Somehow, my umnumzaan fell apart. lost a couple of screws in the process and needed to fix it.
Ordered some at CRK (with excellent customer service) and also, put in some new tactical sound dampening o-rings that were looooong gone from my umnumzaan.

Why not clean it while we're at it. This was long overdue. I know some of you will cringe at the sight

some copper oxide I guess (greenish).
I used some water and scrub to clean the handles and removed grease and dirt from the washers.

THere were 2 nicks on the blade, one you can see located on the knife part that's on top of the handle.

I used the ken onion work sharpener (without the attachment) to work on the knife. I taped up the blade to prevent accidental damage due to the buildup of grinding material on the guides of the sharpener.
I put the knife edge perpendicular on the extra coarse to immediately get rid of the nick in the blade.
I found out in the past that doing it this way makes creating a new edge a lot faster.
Below you can see the XC grind.

don't remember XC/Coarse/Medium? but I'm using my trusted magnifying glass (triplet with 20x magnification)
this one is the result of a finer grit belt.
started with XC then C then Medium then Fine, then Xtra fine (which is 6000 grit, equivalent to about 3 micron according to https://www.bestsharpeningstones.com/article_details.php?id=1&article_name=Micron to Grit Conversion Calculator).
After that I used my strops with diapaste from 6 micron to 3 micron to 1 micron.

Looking pretty good and shiny. a little fluorinated way too expensive CRK grease on the washer that I can now tell you lasts at least 11 years and apparantly comes for free with new knives these days

assembling everything, you can see the stains the washers left on the thinggie.
some more pictures in the next post
Ordered some at CRK (with excellent customer service) and also, put in some new tactical sound dampening o-rings that were looooong gone from my umnumzaan.

Why not clean it while we're at it. This was long overdue. I know some of you will cringe at the sight


some copper oxide I guess (greenish).
I used some water and scrub to clean the handles and removed grease and dirt from the washers.

THere were 2 nicks on the blade, one you can see located on the knife part that's on top of the handle.

I used the ken onion work sharpener (without the attachment) to work on the knife. I taped up the blade to prevent accidental damage due to the buildup of grinding material on the guides of the sharpener.
I put the knife edge perpendicular on the extra coarse to immediately get rid of the nick in the blade.
I found out in the past that doing it this way makes creating a new edge a lot faster.
Below you can see the XC grind.

don't remember XC/Coarse/Medium? but I'm using my trusted magnifying glass (triplet with 20x magnification)

this one is the result of a finer grit belt.

started with XC then C then Medium then Fine, then Xtra fine (which is 6000 grit, equivalent to about 3 micron according to https://www.bestsharpeningstones.com/article_details.php?id=1&article_name=Micron to Grit Conversion Calculator).
After that I used my strops with diapaste from 6 micron to 3 micron to 1 micron.

Looking pretty good and shiny. a little fluorinated way too expensive CRK grease on the washer that I can now tell you lasts at least 11 years and apparantly comes for free with new knives these days


assembling everything, you can see the stains the washers left on the thinggie.

some more pictures in the next post