v5cvbb wrote:Alan, what about the other set the same seller has that has 240, 600 and 3000 grit?
I'm not sure about wear. My initial thought was that the 400 and 1200 seemed less durable in how they felt on the wheel itself. I was concerned the diamond would wear off. I have only used the 400 for a couple sharpens. On the smaller wheels used on my Dremel the grit seems to be possibly a bit more abrasive than the 400, so maybe 240 would be good. I don't have any opinion of 600, 1200 or 3000 as I have never used those. Also the Dremel wheels get the same use in the same area, so the one I have been using on it seems to be digging into the diamond in one spot where the tungsten rotates, but the wheels are cheap, just a PITA to change due to the design in how it attaches to the Dremel.
v5cvbb wrote:After switching to the 400 would you think higher or lower would be better? I don't even know the grit of my current wheel but it's too course. Grind marks are pretty obvious.
Not sure if you're using a diamond wheel or not, but on both carbide and aluminum oxide my problem is the dust involved. Although little is tungsten dust from that mess, it's in there cause the point grinds down, just as there is dust somewhere from the tungsten on the diamond, just that it's cleaner for sure as you don't have so much dust getting all over everything.
v5cvbb wrote:I was going to go ahead order a set. I dread grinding tungsten with my current setup. Something has to change.
I'll be honest with you, I like the Dremel the best, and suspect I would like the TechSouth/Sharpie, one of those buy once cry once things...but the Dremel attachment I have works better and easier to sharpen, so with a diamond wheel on the bench grinder I can clean the tungsten up to be able to get into the collet. My points come out the most consistent on the Dremel, but I can get a less steep angle on the bench grinder. Neither are perfect, IMO. I think the adjustable TechSouth/Sharpie would be the best of both worlds, my Dremel doesn't have angle adjustment.
cornmuse wrote:Which of the three grits is preferable (for tungsten obviously)??
So far the 400 seems better than the 120. Those are the only 2 I have tried.
I'm sure that's more ANAL diagnosis than anyone expected...
