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Craftsman Professional Variable Speed 8" Bench Grinder (21162)

Item# 00921162000P | Model# 21162 | Added on July 26, 2010 | Seller:
Craftsman Professional Variable Speed 8" Bench Grinder (21162)
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Description Specifications
Get a Well-Equipped Workshop or Garage with the Variable Speed 8'' Bench Grinder from Craftsman With a variable speed of 2000 to 3450 RPM, the Craftsman Professional Bench Grinder can take on a wide range of grinding, sharpening and buffing tasks. The grinder comes with a flexible work light that has its own on/off switch for illuminating your work area. Convenient features such as quick-change wheel guards and thin-line motor housing, makes this a must-have tool for your workshop or garage.
The Variable Speed 8'' Bench Grinder from Craftsman also offers accurate bit sharpening with its adjustable tool rests that have patented attachments. The water cooling tray and handheld wheel dresser boost the versatility of this tool. The grinder also has user-friendly features such as a cast iron base to reduce vibration when in use and the clear eye shields and spark guards help you stay safe while working. Get the best for your workshop or garage with this bench grinder from Craftsman.

  • Craftsman Professional Bench Grinder is useful for a wide variety of grinding applications
  • Separate grinding and wire wheels for maximum versatility
  • Incandescent work light with an independent on/off switch
  • Includes clear eye shield and wheel guard spark arrest for safety while working
  • The grinder has 8 in. diameter wheels
  • Toolless removal of wheel covers for quick easy changes.
  • Includes wheel dresser to clean and true abrasive wheels.  stored on the tool.
  • One year
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Ratings & Reviews

Overall Rating:

(114 Ratings)
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Most Helpful Reviews:

By Dallas7788
February 24th, 2015
Beats the Competition!

I was originally looking at a grinder at ***** for a few dollars less. What turned me on about this grinder was the tool rests. The Overall machine is over 2 inches wider, giving you more room to work with, and the tool rests are at least twice, if not three times the size and strength! I also like how the craftsman grinder light function can be turned on even with the grinder off. The quench tray is also more than double in size. Finally, What really sold me, was the drill bit groove is a separate plate! Loosen the screw, turn it down 90 degrees and tighten it back up. I couldn't stand being stuck with a permanent 60 degree v-groove. I have only found a couple little things I would change about the unit. The wheel housing/ guard is comparable to other brands, weak in design. The tool rests to bolt to a bracket that bolts to this housing (as all grinders do) but since the material is thinner than I'd desire, it seems to give a little flex to the tool rests. Its not near as bad as other similar priced grinders, but not adequately better either. and I removed the cheap wheel dresser and holder as it got in the way of my light. Yes I did have the vibration issue that everyone seems to have, and yes, the grind wheel was slightly out of round, but that is not what causes the vibration. I removed the wire wheel and ran it with one wheel (even being out of round) and had ZERO vibration just sitting freely on the bench. I bought a very cheap $6.00 8" grind wheel to test my theory and guess what... ZERO vibration (with two out of round wheels). The cheap fine wire bristle wheel that comes with it tends to smack the wires against the housing a little, is out of round, and created a wind turbulence and/or harmonic that creates the vibration. Even a high end stiff wire wheel adds to grinder vibration (just not as bad as this stock one). I wish there 4 mounting holes but there are only two. Bolt the grinder to a heavy pedestal or bench, or don't use (or purchase a better) wire wheel. All in all, this is a great grinder. Im used to using Jet and Dayton grinders at work and this one will run neck and neck with those higher end brands. I couldn't be happier, and never write reviews but just had to on this one. Hope this helps set the record straight for future buyers on the vibration issue. Happy Grinding!

8 found this review helpful
By Harleybobfb
October 28th, 2014
Grinding wheels wobble and the wheel washers are bent.

The inner diameter of the wheel washers are .022" too large for the shaft size. They are stamped and are the two surfaces are not flat on both washers. This is simply points out a lack of understanding of rotaing equipment, poor design, and less than quality manufacturing standards. If you have one that operates smoothly, I do not recommend you attempt to change grinding wheels. Be happy with what you have. If you must change to wire wheels and/or buffing pads they are far more tolerant of miss-alignments and should offer you less risk for wobble and sever vibrations. I have two older craftsmen grinders that do not demonstrate any of these design and manufacturing flaws. They have offered me years of great service. I wish I could purchase two more grinders of that quailty in the Craftsman brand.

11 found this review helpful
Reviewers may have received a benefit, like a sweepstakes entry or rewards program points, in exchange for writing a review.
Those benefits were not conditioned on the positive or negative content of the review.
IVAN ivananderson
| Earned 24 community points in Tools
14 days ago

8in bench grinder


this thing works great!! every time I need it, flip the switch and your on your way

September 24th via
1 of 1 found this review helpful.
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Bought grinder to upgrade my old unit - vibrated badly! Replaced wire wheel with Dewalt (DW4906) from **** - problem solved. Very nice machine (now).

September 2nd via
2 of 2 found this review helpful.
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8" Grinder - perfect size for all of your needs at home


The motor is powerful enough to take on the toughest jobs. The wire brush gives versatility to the projects at home.

May 15th via
1 of 1 found this review helpful.
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Money Well Spent


This is pricier than the competing grinders at the big box stores but after comparing them in-store I decided the Craftsman is of a better quality in both build and materials. I'm a woodworker but I didn't buy this to sharpen tools (I have a Worksharp WS-3000). Instead I was going off the advice that a bench grinder is a tool that you got by without until you own one and then you'll never go without it. I found this to be true. I find all kinds of reasons to abuse this machine and use it for solutions I wouldn't have arrived at without owning this tool.

April 28th via
6 of 6 found this review helpful.
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great grinder


The grinder is really nice. It's very quiet and smooth running. The drill bit attachment is nice I've saved a few bits using it. I didn't get the wheel dresser tool, water tray, or the tool to take the wheels of but emailed sears about it and I'm still waiting to get the parts. I would definitely recommend this grinder if someone is know is in the market for one just check the box first.

March 24th via mobile
6 of 6 found this review helpful.
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Good performance. Failed PCB.


I must admit that this unit has good power. I purchased it because it had variable speed. Variable speed is controlled by a potentiometer which is a part of the PCB. It failed in 7 months. It only works at high RPM. The unit will be taken for repair under warranty.

March 16th via
6 of 8 found this review helpful.
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Great product, variable speed nice option.

March 14th via
2 of 4 found this review helpful.
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Good deal


February 14th via
1 of 4 found this review helpful.
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Tisha Auhagen
| Earned 8 community points in Woodworking
February 2nd

bench grinder


It's nice to have the 8" grinder. My wife bought my 6" in 1984 and carried it home on the bus!

January 26th via
0 of 5 found this review helpful.
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Very pleased

January 12th via mobile
1 of 4 found this review helpful.
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Great Grinder


Just got this grinder and I'm impressed! At first, it didn't take much to stop the grinder, I soon realized that I had the variable speed turned as low as it would go, turned it all the way up and plenty of power! Easy to assemble, no vibration, it's a keeper!

December 27th, 2015 via
5 of 5 found this review helpful.
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Excellent Product


I bought this grinder at least a year ago. I have used it for grinding and I replaced the wire wheel with a polishing wheel for shining up the knives I make. It's gotten to the point that I need to change the grinding wheel because of a lot of use. It's a work horse and its well balanced. I don't understand some of the negative reviews. I have had no problems with this machine. You can't dog it down and it works perfectly. The variable speed is a great addition, i can slow it down to do fine detail work. I would buy it again.

December 9th, 2015 via
5 of 6 found this review helpful.
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You Want This Grinder


This one has all the grunt you need for a commercial application and amazing at home.

November 12th, 2015 via
1 of 2 found this review helpful.
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Nothing special


Craftsman "Professional" should NEVER be made in China, yet this is. It has a heavy base and metal housing. It does spin very fast on the higher settings, but it lacks torque so anytime pressure is applied to the object being ground it stutters. All of the attachments including the wheel covers are garbage, cheaply made with poor choice of fasteners. It's fairly well balanced, but it is new so it should be. The motor housing gets extremely hot after a few minutes of use, untouchable at 6-7 minutes. My cousin gave me a 66 year old grinder with a rusty patina that initially I was hesitant to even plug in and test. Sadly (for Craftsman) it's better balanced, easier to change the wheels and the motor is stronger, quieter and doesn't get dangerously hot during use. I bought this for secondary use, hoping to minimize wheel swaps while polishing. I'm doubting my decision since it already can't keep up with a grinder that's twice as old as I am!

November 1st, 2015 via
2 of 2 found this review helpful.
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Eric McFail
| Earned 8 community points in Craftsman Professional
September 16th, 2015

Professional grinder


Excellent product and for the price even better good for around the house jones don't even need to turn up to full speed works fine on low speed

August 24th, 2015 via
1 of 1 found this review helpful.
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8 inch bench grinder


this bench grinder is fairly heavy and from the material it's made of I would say most of the weight is in the motor,which in my opinion is GOOD. assembly is very easy. from the reviews I read I didn't know exactly what to expect as far as vibration . to my delight this 8 inch craftsman bench grinder is extremely smooth. I didn't bolt it down and it sit's there and theres almost no movement when running. in fact if you couldn't hear the motor run( it's quiet as far as bench grinders go) you wouldn't know it's running.i'm very impressed with this grinder and would highly recommend it.i got a great deal(on sale) and am very happy with this craftsman tool.

July 29th, 2015 via
0 of 1 found this review helpful.
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Dustin Manovski
| Earned 5,061 community points in Tools
March 9th, 2015
Questions & Answers (1) See All
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Zoltan Berencsi
Craftsman Professional Variable Speed 8" Bench Grinder (21162)
January 31st
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Ashley LaBeth
By Ashley LaBeth
February 1st