Granberg precision grinder (new toy!)

I just got this in the mail and spent the afternoon playing with it.
I got 4 chains sharpened with it and hopefully I will get to test them out Friday.
Here is part one let me know what you think of the video.

 

Cool video! Since you asked, try to using a tripod or such. I was getting a little seasick watching.

 

I've been very pleased with mine! The stones don't last very long though.

 

Hey nice video thanks for posting sure looks to do a mighty fine job..... I have a grandberg that a very nice fella on this site sent me!!!.... Mine is the manual one, but I personally love it, I have used the hell out of it....now I like to hand sharpen and believe everyone should learn to touch up a chain by hand....but every 2-3 sharpens I brake out the grandberg jig just to true every thing up... If you take your time you can get the chain extremely sharp!!!

 

You can get diamond burs for those , last a long time

 

And more importantly the don't get smaller as you use them.

 

Does any one have a good place to get them? Nobody locally carries them.

 

I have no idea. I used a few stones and decided this type of sharpening wasn't for me, and haven't given it much more though. I do know some carbide bits are available on the internet, and would likely be the best, most efficient option.

 

I may be mistaken about the diamond burrs, I did a little searching and saw that your Jig has threaded shanks,, did not see any Dimond burrs for those, dremel tools have non threaded shanks 8 inch, and have diamond burrs available

 

These?

Dinasaw ABN Sharpening Stones

 

The only question is are they threaded? It doesn't really say, and I keep forgetting to call and ask Left Coast.

I took the granberg powerhead apart once to see if it could be easily converted to a dremel style collet. No bueno there either. The dremel I've seen are direct drive and the granberg is offset belt driven, so not easily accomplished.

Seems to me the best option would be to simply add threads with a die to these:

https://www.amazon.com/gp/aw/d/B001...r+chainsaw&dpPl=1&dpID=51JybJSowDL&ref=plSrch

 

I just missed out on being a tester for those, before they were even selling them. They are threaded for the granberg style collet. But compared to the ones you linked to, it does seem like an awful lot to pay to have someone thread them for you.

 

Tried one of those setups back in the day (way back in the day actually when they were introduced) well after trying Granberg's file guide. Was not impressed at all, at how the "points" (cylindrical stones) wore away so quickly, and the drive belt too. Still happily using the "File-N-Joint" file guide, and loving how long files last in it. For a buck a file, it works for me, and makes for really sharp, consistent chain.
Still have the pieces of the electric one around somewhere.