Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: what makes this one "quick"? it shows the same amperage and rpms as the "regular wp 115, but the other shows its variable speed and this one does not.
Document: After purchasing a couple of other grinders and having failures I decided to &#34;bite the bullet&#34;.So far the Metabo has done the job. I used Metabo grinders at my job so I should have just went with one for my personal use..DOH! !The quick change is nice. No tools for disc swap or adjusting guard.
Didn't think I would like an angle grinder so much, but I do. I'm cutting hardened steel chains and the Metabo slices them like a hot knife through butter. When I screw up and bind the disk in the cut, the clutch kicks in and prevents damage. The quick change mechanism works every time and is easy to use. I fully expect to use this sturdy machine the rest of my life, so I don't expect to buy another one. But if I do, chances are it'll be another Metabo.
By far the best product one could buy for grinding and cutting. This is actually the second Metabo unit. I was expecting a half as good a product compared to my first unit. This is double the product of my 7 year old grinder. I have pressed both units into a manufacturing process and expect both to last many years to come......
You will not be disappointed with a Metabo Grinder. I have been a hobby machinist/fabricator for several years and used my fair share of other big name grinders. All eventually let me down. After researching and hearing about Metabo, I decided to try them out. I bought one and liked it so much I am ordering a second!Easily the highest quality grinder I have worked with over the years and I expect it to last for years to come.
we have about 12 of them at any given time and we are not kind to them. they still can last a couple of years.
The housing is a bit more bulky than most comparable 4-1/2&#34; angle grinders, but the Metabo runs smooth with less vibration. I use mine with cut-off disc, flap disc, and grinder for pipe welding. This is the model without the deadman switch, which I prefer since I use it mostly without the side handle. If you're always going to be using the side handle, a deadman switch is safer and more convenient.
I've been using this grinder to cut, grind, and sand sheet metal while I restore my Blazer. It is an absolute beast. I have gotten the cutting wheel caught twice but the clutch disconnects and the motorr was completely okay. After looking around for several weeks to find an American made grinder I was disapointed to see that all of the grinders on the market are made overseas. Not wanting to support the Chinese I decided on the Metabo. German manufacturing is certainly on par with America.
I was taking a welding class at a local community college and I needed a grinder. i checked what other guys had, checked online, and decided on the Metabo. I am so glad I did, it works flawlessly and is powerful. It has exceeded my expectations.
I needed a new grinder to replace my 17 year old Porter Cable Grinder and this wasrecommended by several people as the best even tho it isn't made in the USA which I was looking for. I haven't used it much yet but so far it has performed well. I like the "no wrench changing of the disc.
I am the type of guy that will wait till I can afford to buy a quality tool before I go cheap in most cases! This grinder burns stuff up! Very smooth and the lack of a paddle switch seals the deal!
Answer: yes