I have an unusual question on the topic of whetstone. Although this isn't a knife's edge, I thought that maybe someone here might be familiar enough with the types of stones to offer an answer.
When working on electronics I use nylon tools to prevent damage to the surfaces I'm working on. The problem with this is that I will quickly damage a tool either my losing its edge or by chipping and cracking. The edges of these tools are also fairly dull and I would like to give some of them a very sharp edge suitable for cutting (rubber and silicone in this case).
What kind of whetstone would be able to give me a very sharp edge on my spudging tool and allow me to recover an edge in the event that I damage the surface?
Here is a photo of the surface of the spudger: