The diamond lapping plate, so useful without out one I would struggle a bit. Who invented them and which ones do you hate or love? I use the Atoma myself but still have a few of the plastic based DMT's around.
Alex
Alex
Stoop
I will look for one, I am at the Kezuroukai for the next two days, lots of merchandise there and some manufactures too including Tsunoban so maybe I can get some history.
Alex