Oregon 28840 5/32-Inch Chainsaw Replacement Sharpening Stone

Doesn’t compare to hand filing for square filing chains, but is so much faster, at least 5 times, if not 10 times faster.

These don't last long, but do a great job of sharpening.

Oregon is an overall great product!

I have been using a small 5/32 rat tail file to sharpen my 4" chainsaw chains. The Oregon 28840 5/32-Inch Chainsaw Sharpening Stone is much faster and with better results.

I use my chainsaw a lot! Sharpening it with these files in my Dremel tool is a quick job, and a lot cheaper than paying someone to do the job.

I bought an Oregon chainsaw which worked beautifully for a tree I needed to cut down. When I needed to remove the stump, the chain needed to be sharpened so I bought these sharpening burrs. I used a rotary tool to sharpen the saw teeth. The first burr lasted long enough to complete the sharpening and then fell apart. The second one not even that long. This has happened with other brand burrs as well. I will no longer use this sharpening method and just go to a metal file,

I haven't used the product yet but it's exactly what I wanted. Should be just right for sharpening my small electric saw

I’ve been using these Oregon sharpening stones for years. They work in the 12 volt Oregon Sure Sharp rotary tool or in a standard Dremel. Make sure to buy the right size/diameter for your chain saw. The stones come in 3 or 4 diameters. Correct diameter will be listed on the box of The replacement chains.Makes sharpening chains quick and does a good job.