Model # R86040B

Internet #203930490

Store SKU #1000015874

RIDGID X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder
0648846062907

RIDGID

X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder

  • Spindle lock lets you easily change grinding wheels
  • 100% compatible with all RIDGID 18-Volt slide battery packs
  • Superior grip comfort
$99.00 /each

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Product Overview

The RIDGID X4 18-Volt Cordless Angle Grinder (Console Only) is compatible with all 18-Volt slide battery packs and features a tool-less guard design to easily rotate the guard for optimal grinding. With console-only tools, you have the option to add on to existing kits to create your own. The grinder features innovative Hex Grip micro texture to ensure comfort during extended use, and a load level LED light protects the grinder by preventing overload. With the convenient cordless design, it easily reaches tight spots without hassle. Backed by RIDGID's lifetime service agreement, you can count on free batteries, free parts and free service for the entire life of your tool.

  • Includes R86040 angle grinder, side handle, spanner wrench, wheel guard, grinding wheel, flange, clamp nut and operator's manual
  • Load level LED indicator light illuminates to prevent grinder overload
  • Tool-less guard design easily rotates guard for optimal grinding position
  • Auto tool lock-off feature prevents accidental start; if battery is installed while tool is locked on, tool will not operate
  • Hexgrip micro texture provides superior grip and comfort during extended tool use
  • Batteries and charger sold separately; works with these batteries (AC840083, AC840085, AC840084 and AC46182) and chargers (AC470013 and AC840093)
  • Lifetime service agreement with registration within 90 days of purchase
  • Click Here to Register Your Product

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Info & Guides

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Price
$49.97 /each
$99.00 /each
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Name 8-Amp 4-1/2 in. Angle Grinder X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder 18-Volt Lithium-Ion Cordless Brushless Angle Grinder M18 18-Volt Lithium-Ion 4-1/2 in. Cordless Cut-Off/Grinder (Tool-Only)
Brand RIDGID RIDGID RIDGID Milwaukee
Ratings (26) (60) (14) (262)
Cordless/ Corded Corded Cordless Cordless Cordless
Wheel Diameter (in.) 4.5 4.5 in 4-1/2 in 4.5
Power Tool Features Grinding Wheel Included,Spindle Lock Adjustable Handle Position,Grinding Wheel Included,Spindle Lock Brushless,Grinding Wheel Included,Lock On Switch No Additional Features
Amperage (amps) 8 4 0.0 0
Reconditioned No No No No
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Customer Questions & Answers

11 Questions28 Answers

Customer Questions & Answers

X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder
X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder

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6 answers

Will the cordless grinder accept the 5/8" hole cut off discs?

This question is from X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder
Asked by
Tom
Jax. Fl.
July 10, 2013
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Answers (6)

Asked by
Read all my Q&A
December 7, 2015
Answer: 
Yes. Recessed wheels are best, but I have used flat discs as well (contrary to literature with the machine). It might take threaded arbor disks as well, but I have not tried any.
+1point
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Asked by
Peachtree City
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November 1, 2015
Answer: 
No sir, it only accepts 7/8" inner diameter wheels.
-2points
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Asked by
Edmonton, Canada
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Home Improvement Profile: DIYer
July 25, 2014
Answer: 
It's worth noting that the instruction manual DOES NOT recommend use of "cut off" discs (only grinding, sanding, polishing and brushes) -- it's very explicit in mentioning that cut off discs should not be used. It's not clear why -- this may just be a CYA situation.
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Asked by
New Hampshire
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Home Improvement Profile: Professional
May 28, 2014
Answer: 
Yes, it has a 5/8" arbor.
+3points
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Asked by
Texas
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Home Improvement Profile: Professional
February 12, 2014
Answer: 
Yes. The lock nut that secures the disc is reversible, I've got a 5/8 hole 1/8 thickness diamond tile disc on mine right now.
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Asked by
Arizona
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July 12, 2013
Answer: 
Yes. The arbor diameter is 5/8". The grinder will accept 4 1/2" cut off discs.
AZman
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4 answers

your add says you can count on free batteries, free parts and free service for the entire life of your tool. however

This question is from X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder
Asked by
Otonabee Ontario
Read all my Q&A
July 13, 2015
your add says you can count on free batteries, free parts and free service for the entire life of your tool. however
your website says only batteries that come in kits qualify for replacement
this grinder is sold only as bare tool
which is it???
the 2 kits I have bought only have 1.5 hour battery so if I buy 3 hour it would not be covered??
if I an wrong please send a letter to verify
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Answers (4)

Asked by
Huntington Beach, CA
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June 19, 2016
Answer: 
LSA only on batteries packaged in tool kits; stand alone batteries carry 3 year warranty.
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Asked by
sinclairville, ny
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Home Improvement Profile: Professional
February 1, 2016
Answer: 
yes , correct . Individual purchase batteries are not covered under lifetime warranty . just a 3 year.
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Asked by
Tuscaloosa Alabama
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Home Improvement Profile: DIYer
July 14, 2015
Answer: 
Your asking about the warranty, i understand it only applies to the battery's that come with the tool itself,...i can tell you however that getting that warranty is a pain in the butt......i have not had to use it yet....but i have to think that with it being so difficult to get, what will it be like having to get something fixed r replaced.
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July 14, 2015
Answer: 
Hello Nick. Any new Ridgid accessory batteries or chargers have a three year warranty with the receipt. Any power tool kits or combos, including the batteries or chargers, are eligible for the Lifetime Service Agreement registration.
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4 answers

Compatible Battery

This question is from X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder
Asked by
Read all my Q&A
November 16, 2014
Are the batteries contained in the R9200 combo kit (two - R84087 4.0 Ah batteries) compatible with the R86040B cordless grinder? They are not listed under the features section of the grinder.
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Answers (4)

Asked by
Read all my Q&A
December 7, 2015
Answer: 
This works on all the 18v Ridgid batteries. I recommend the 4.0Ah batteries, since the 2.5Ah batteries will die much quicker.
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Asked by
Peachtree City
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November 1, 2015
Answer: 
Yeap! They should work fine. :D
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Asked by
Albany, OR
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Home Improvement Profile: DIYer
March 27, 2015
Answer: 
Yes. I have the same combo kit and batteries and they are compatible.
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Asked by
Read all my Q&A
November 19, 2014
Answer: 
Thank you for your interest in RIDGID!
All RIDGID 18V platform tools and batteries are interchangeable. However, the RIDGID 18V Lithium Ion batteries do require their correct charger.
Regards,
RIDGID
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3 answers

trouble shooting

This question is from X4 18-Volt Lithium-Ion Cordless 4-1/2 in. Angle Grinder
Asked by
Chelsea Maine
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August 26, 2015
I have an R86040. It quit running. The right light in front of the power button will come on if the tool is turned on when I plug in a battery. That is the only response I get to anything I've tried in attempting to get this tool to work. Very disappointed so far. This grinder has maybe 20 minutes of gentle use since I've owned it. I usually use a corded grinder. This is just used for quick light jobs. And it's already junk.
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Answers (3)

Asked by
sinclairville, ny
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Home Improvement Profile: Professional
February 1, 2016
Answer: 
make sure the switch is in the off position before installing the battery.
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Asked by
Peachtree City
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November 1, 2015
Answer: 
Have you tried to bring it back to your store where you bought it? Or called/emailed Ridgid? This seems to be a month ago but id like to hear what you did.
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August 28, 2015
Answer: 
We apologize that you have had trouble with use on this unit. We would like to get you back up and running. We will be happy to check the warranty of the product by the receipt or serial number. We can also check for registration. Once we verify the warranty, we can find a service center in your area. You can reach our customer service at 1-866-539-1710. We hope this helps.
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Customer Reviews

Rated 3.8 out of 5 by 59 reviewers.
Rated 1.0 out of 5.0 by Worst Rigid I have ever purchased This is the worst thing I have ever purchased with a rigid name on it. Rigid should be ashamed to put their name on it. I am upset that Home Depot will even sell it. I can not put any pressure on the grinder without the red light flashing and the grinder turning off. I tried cutting 3/8" all thread with a cut off wheel and it took 4 times as long as it would with a plug in grinder because I could not put ANY pressure on the blade without turning off. Grinding metal with the included disc is not any better, I have several other Rigid cordless tools and am really satisfied with them, but this cordless grinder is a big piece of JUNK. October 17, 2016
Rated 1.0 out of 5.0 by A rare Ridgid disappointment I bought this tool this week to use on a job site where 110v power would have been unavailable. Needed to cut off 3/8" bolts flush with concrete...not a big deal. And yes, even though the tool came with the grinding wheel, I bought several thin cut-off wheels for this work. From the very first cut, with a full charge on my Li 4ah, 18v battery, this tool immediately flashed its overheat warning lights. Even when I backed off and applied less pressure, the tool was not up top the task. It would shut down and need a brief coming off period before I could resume. And this was a fresh out of the box tool! Very time-consuming and frustrating. My son had his much older Ryobi cordless grinder with a new Li battery and it worked like a champ. I'm not a big Ryobi fan and I won't abandon my Ridgid cordless set, but Ridgid really needs to go back to the drawing board on this one. I paid $99 for it and with its severe limitations it's not worth a fraction of that price. I'm taking it back. I hope they can improve this model soon! October 16, 2016
Rated 2.0 out of 5.0 by Not impressed.....at all I have almost all of the ridgid cordless tools, well a bunch of them anyway, not to mention several corded rigid tools. I have always been more than impressed with all of there tools to say the least. That was until I bought this 18V grinder. Even with the 4.0 big battery in it, it lacks any kind of power for cutting, even w a thin disk, or grinding. I worked for Black and Decker / Dewalt for years. This is worse than anything that they ever put out by far. I hate to leave negative feedback about anything, especially RIDGID tools, but this grinder is terrible. Sorry guys, you missed the boat on this one. September 3, 2016
Rated 1.0 out of 5.0 by Money waste This is the first rigid tool that I'm not happy with. It kills the battery in minutes and shuts down if you use any pressure. Buy a corded grinder September 6, 2016
Rated 5.0 out of 5.0 by Denzil Wilson Great grinder batteries last a long time good for home projects August 9, 2016
Rated 5.0 out of 5.0 by Works great This grinder works great! Battery holds up well while using! July 14, 2016
Rated 1.0 out of 5.0 by Great for cutting soft butter Was excited to try my new Rigid cordless grinder since someone walked off with my Dewalt grinder. Had some other Rigid tools that worked well so I figured this would be too. Wrong!!! This was a toy compared to my old 18v Dewalt. Does it cut? Maybe some soft butter but certainly not steel. I used it to cut 3/8 bolts that secure handles on shipping containers we sell and the dreaded overload lights flash as soon as the disc touches the bolt. Soon after the thing craps out. I returned it to Home Depot and got a Dewalt. Problem Solved. Do not buy this tool! May 19, 2016
Rated 1.0 out of 5.0 by lsa their warranty registration is sucks I have 6 ridged tools and 6 batteries try to register them in their LSA never got approve don't get fooled. I go back to dewalt better tools. May 7, 2016
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