Integra Tools 3/16" Diamond Chainsaw Sharpener Burr 1/8" Shank, 6 Pack

Arrived on time and was exactly what I needed. Have sharpened at least 20 chains with first burr and it still has life left. Lasts far longer than stone burrs and does not heat the chain. Will definitely buy these again, but the way they last, it will be a while before I will need to reorder.

The burrs work quicker, seem to grind finer, and last at least as long as the carborundum grinders for sharpening my chain saw (probably longer; I haven't used the first one that much yet). The nice part is that as they wear, the diameter is still about the same and hasn't gotten progressively smaller over time.

Works well but need to be careful about breaking. Seems to wear/dull too fast.

I'm not a professional arborist or lumberjack with tons of time and experience behind a chainsaw but have been using a Stihl for about 15 years clearing deadwood, brush and trees up to 24" on a 25 acre lot so I have had quite a lot of sharpening done and it's just not fun and slows the process down when you are doing hours of cutting at a time.I decided to try these bits out using my portable cordless Dremel  Dremel 8050-N/18 Micro Rotary Tool with MultiPro Keyless Chuck  that I took with me into the field with saw once the blade dulled and started making fine sawdust. How convenient to use with the blade on the bar to tune up the blade! Love it. I'm sure the accuracy of matching the angle isn't dead on, but it was very easy to align with the blade angle marking run the Dremel in and out of the blade twice on each link and essentially produce a newly sharpened tool that extended my work time and field coverage. (NOTE: Always use safety glasses while sharpening just like you use for chainsawing). I'm sure the accuracy can increase with the Dremel Attachment Kit for Sharpening Tools  Dremel A679-02 Attachment Kit for Sharpening Outdoor Gardening Tools , but I'm not convinced it would produce any better result for just doing chainsaw blades.Delivery was great. Packaging was simple. The quality of the bits in terms of their durability seems to be good and certainly worth the price offered here on Amazon with this 6-pack. If my continued experience proves otherwise I'll update this review.

Sharpen well, and the grit is resilient. The biggest problem is that the shaft material isn't great quality (not tool steel most likely) and bend easily. I had to throw out several from the pack after just turning the Dremel on and the centrifugal force bent them before even touching any metal to sharpen!

Very good sharpener. Have sharpened one chain and there is no sign of wear. Great product!

poorly made and did not stand up to any force

I have used two of these for years. They save a lot of time for sharpening the teeth and adjusting depth gauge. A must have tool for frequent chain saw use.