Thread: Scratches when using DMT 325 as lapping stone

Before using a DMT325 to lap any hone, you should take a large screwdriver shank and run it vigorously across the plate to knock down any loose diamond bits. Once I did this procedure, I had no issues lapping my Naniwa Super Stones. However, I did run into some scratch issues a few weeks ago and had to redo this procedure again.

Too bad the Shapton DGLP costs nearly $400, but that is the lapping plate I would use if I had the coin for Shaptons.