Granite reference blocks are pretty expensive here, so for now I would keep trying freehand method and get used disk sander.
Really appreciate all the advices, thanks a ton! :beer:
I was going to say that Mike's workspace is the neatest I've ever seen. I'd be embarrassed to show mine. Fortunately, I've noticed that my shop space is only slightly more cluttered than Pierre's an roughly on par with Will C's. :D
Tip - When using a disc sander with table make sure that the wood blocks are squared up along all sides BEFORE squaring up the ends. Trust me...
Sometimes to true up a small piece I will use an adhesive back sandpaper disc for my palm sander and stick it on a piece of glass.
Just use light pressure and be careful not to rock the piece of wood.
The mention of clamping between a couple pieces of wood sounds like a good idea.
Guys your input really helped! I was able to sand it even enough.
Sorry for photo quality and thanks a lot!
Decided to post an almost finished handle pictures just as a "thank you" message for all your advices.
Karelian birch and walnut mounted on 150mm Tanaka petty. The stock handle was waaay to bad so I just had to replace it.
Since I haven't any woodworking skills prior to starting this handle, it was a completely new universe for me. Obviously I've made quite a few mistakes with this handle and gonna try better next time.
Nice! I bet you're happy as can be. :)