Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: does it come with a chain lock so when your sharpening  the chain it it will not move sideways
Document: I have used this sharpener for a year now and  can't  say one bad thing about it. It will sharpen a chain to professional standards in minutes. this unit is identical to the Oregon machine at half the price. I am positive that they come from the same assembly line. awesome, buy it and you will be very happy.
not a very good chain track guide  screws on guard do not line up other then that i would recomend it to anyone
works awsome  couldnt ask any better. sharpens chain farly quickly once you get us to it i would recomend it
The motor is super smooth and quiet no vibrations or rattles. But the chain rail is a bit cheap had to do some modifications to make it rotate smoother.. didn't install the guard as it didn't seem to line up with the pre threaded screw holes for it. but over all it will get the job done faster than the round file way.I would recommend this to others
I can sharpen a chain in good condition but well used, to factory sharpness, with just a file. For reasons that I cannot understand or explain, I like to over cut a log, making a plunge cut into the rocky soil and bugger up a chain bad BAD like. My hand file skills allow me to recover the chain to barely useful. Testimony to this was the number of chains hanging off a nail in the garage. Not so any longer.
used it two times and the arm that moves up and down broke. The pin slid down when I was using it and broke one of the ears off. All the parts with black paint are made out of pop metal. Super weak and you can not weld of brase it back
Strong, three discs in the set. The hard-set protective casing. good value for money. Quick delivery right to the door.
In my experience's of today, easy to set up, easy to use, and is going to be a valuable resource for many many years.
I think this is the same as the Oregen 510A. Good quality, works fine, takes some work to set up, as expected. Read the manual.
I received this sharpener and it would not work from the get-go. I had to contact Grizzly for warrantee reasons before I could use it once. It raised a red flag when I found they have a dedicated phone line and department for warrantee parts orders. Further, they do not repair said defective machines, but YOU have to do it yourself. To go even further, I had to harp on them, contacting them multiple times before I got even that concession out of them.
Answer: yes