Originally Posted by
Euclid440
I have had both the Chosera 600 and 800, also the 1k for several years and use them for repair work, they are both different, the 600 fairly aggressive without too much chipping, the 800 can be use in place of the 1k. But I have not use them in a while.
I do most repair work on Diamond plates, 140, 300, 400 and 1k, I do not do a full bevel set on diamonds, though. I bevel set razors that have been on diamonds with a Nubatama Ume 1k. The Ume 1k is very hard and fast, but leaves a shallow stria pattern, that a 2k or 4k will easily remove.
Which by the way the Nubatama 4k is a sweet, fast, soft-ish, 4k.
Either the 600 or 800 will improve repair speed, but to prevent chipping do not fully set the bevel with a 600, use the 800 or a 1k and just get close with the 600. Or joint the edge after the 600 and fully set with the 800 or 1k.
If you do a lot of repair work, they and diamond plates will come in handy, the 1k diamond sees a lot of steel in my shop.
I have been using a 2k for over a year or so, the Naniwa “Green Brick” and that is a game changer, it removes deep stria quickly, without leaving a chippy edge and makes the progression go much quicker. They are inexpensive, 50-60 dollars and at 2in thick will last a while.