Oregon 520-120 Bench Saw Chain Grinder

A VERY useful alternative to dremel style charpeners. This is a 110v plug in machine. If you carefully follow the setup instructions, the machine will sharpen UNIFORMLY and easily. The instruction manual sets out in detail how to set up the machine. Comes with 2 grinding wheels. ***Now for the downside: Professional chain sharpening machines work like this one, but use 5 1/2 inch grinding wheels, which are much more common than the 4 1/4 inch that this machine uses. I installed a 4 inch diamond grinding wheel ($100) and, although a tiny bit smaller in diameter, it functions flawlessly. Advantage of diamond grinding wheel is that you DO NOT have to dress the grinding wheel. For most people, this wheel will last you a lifetime. Difficult to find diamond sharpening wheels in that size, but they do exist, mostly in 4 inch. The above machine has mostly plastic parts although it is sturdy plastic and works nicely. The professional ones are all metal, but you pay for it. All in all, this is a good machine and i am well satisfied with it.

I used to work in a saw shop and this unit works like the old ones 20 years ago did and does a very good job. Very pleased with this model.

This chainsaw grinder works excellent! Great product

Setting up this sharpener may require some patience, but the results are worth it. Unlike hand filing or Dremel sharpening stones, it offers a much faster and less tiring sharpening experience. While not as precise as high-end models like Timberline, it still does a commendable job once you get the hang of it. Just remember to inspect each tooth as you sharpen to ensure a clean and sharp finish. With a bit of practice, this sharpener becomes a valuable tool in your maintenance routine. Highly recommend for its efficiency and time-saving benefits.

I've had cheap sharpeners, they work for a while sort of. After using this, night and day. Much more accurate and consistent sharpening, my chains cut longer before needing resharpening. Simple to use. Expensive but worth it. Especially if you sharpen chains alot.

I have been living in a forest, and using firewood here in MT, for 17 years. I enjoy cutting my own logs into rounds, splitting them, stacking them, and burning them. I was aware of chain saws before this, but by no means an expert. About 15 years ago, I bought a Harbor Freight grinder/sharpener, for probably $40. It was 'ok' for setting the edge of the cutters, but not much else. It is also fairly loose, so every grind isn't the same as the next. I mostly used a Dremel with grinding bits to 'touch up' the cutters. I finally broke down and got this grinder. I knew it was recognized as the best in the business, but didn't want to spend almost $300. Well, it is on sale now for $200. I made the choice and ordered it. It came today. Took me about 45 minutes to make a stand and get it set up. The instructions are 'ok', but I was confused how things 'moved' at first. Got it figured out. Setup for the angles is simple, just follow the chart. After setting it up, I began to grind the chain I had been using. After the first cutter, I was shocked at the difference in the cutting edges. I had been nowhere close to the right angles. It took a lot off the cutters, since things were so messed up, but that will change with subsequent sharpenings. I haven't set the rakers yet, that will be tomorrow, but I already know they are close. Took the sharpened chain out with my Husky Rancher and tried a log. It practically fell through the wood. I feel I was using half the pressure to guide the bar, and without timing before and after, I also feel it cut 40% faster. The difference in chips was obvious, as the new chips were sitting on top of the 'sawdust' I had been making before. This is a quality product, at a good price now, and well worth the expense. I just wish I had ordered it before I did the first 2 of 6 cords I need to cut for winter. The next 4 will go much quicker.

Great product and fast shipping. Was exactly as described. Packaging was great.

This bench grinder is truly a game-changer when it comes to sharpening chainsaw chains. It offers quick and precise sharpening, making it a valuable tool for professionals and DIYers. The ease of use, durability, and great value make it highly recommended for anyone in need of a reliable chainsaw chain sharpener.

Works great to keep chain’s sharp and ready to go

I ordered this after much research and am happy with the chainsaw sharpener, BUT, it came with 1 of the 3 grinding wheels being broken (did not pass the pre use test from the manual). I tried to resolve the issue with Amazon customer service but after multiple contacts the issue remained unresolved. $700 unit with a broken $50 grinding wheel could not be resolved by just sending me another wheel. Cancelled my Prime account and will shop local (as people should). What a shame...

Overall a great little machine. A few light duty points but for the price it is great. My set up needs to be bench mounted, not wall mounted, yet portable. In my opinion the casting and mounting holes for bench mounting are lightweight, it makes me nervous that it could crack the casting if bumped hard. So I mounted it on a board with a vertical board as well to simulate the wall mount and no more concern. Also, the depth stop doesn't make a full contact to the motor, it kind of touches an edge of the adjusting knob, it works though but I thought it could have lined up in a more positive way. Lastly, to change the stones you have to remove the guard, which is understandable. However the guard is plastic and I can see that the screw holes will likely wear out over time. I know more expensive Oregon models have a hole in the centre of the guard for accessing the mounting nut so the guard doesn't have to be removed, I'm considering to drill a hole to do this as well. So my comments shouldn't be construed as reasons not to purchase, just my observations. My first few chains that I sharpened came out great and cut so nice. The biggest challenge is understanding chains in general, i.e. the differences between chisel and chip and low profile chains and which need a 10 degree down angle and which don't... Nonetheless I recommend this grinder, it is good value.

Es muy bueno y silencioso no me ha fallado para nada.

todo llego bien pero falta instructivo y manual, lo tuve que conseguir de internet, no la he usado pero esta marca es una garantia tiene muy buena calidad en sus productos