Thread: My Norton 4k is WAY more coarse than Naniwa 1k

I hear the Norton 4K needs a lot of lapping, as it has some sort of "skin" that needs to be removed prior to use. Hope that helps.

I love the 4K. Back in the day when I only had one hone (Norton 4K/8K) I did it all with that stone and all the heavy work with the 4K. To me it's a real universal hone depending on how you use it stroke and pressure wise. These days I lap it but way back I didn't because I didn't know any better but it still worked fine unlapped.

My 4k feels rougher than a SS 1k and a Chosera 1k, but it does give a finer edge. Haven't looked at the scratch patterns recently enough to remember, cause I really don't care much about scratch patterns these days.

Never had a problem with my 4k in combo before I sold that to get the single grit I've been using for the past four years or more. Goes without saying ......... YMMV.

Originally Posted by JimmyHAD

Never had a problem with my 4k in combo before I sold that to get the single grit I've been using for the past four years or more. Goes without saying ......... YMMV.

And guess where I got my combo from... :-)

This makes no sense to me ,unless you went too far on the 1k and then not enough on the 4. The again I am just a spert !

I have the same sort of issue. Except my Norton 4K seems to be much more coarse than the Norton 1K. I don't know why but running my hands over the two at once the 1K is noticeably smoother than its "finer" cousin, the 4K. Anyone else have this issue? Do I just need to lap the 1K more or what?