18V Brushless Cordless 4.5 in. Angle Grinder Kit w/Grinding Disc, Cut-Off Wheel, 4.0 Ah Battery, and Charger
$247.00
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Pay $222.00 after $25 OFF your total qualifying purchase upon opening a new card. 
Apply for a Home Depot Consumer Card- High Power Output with 10,000 RPM
- Includes: 4.0 Ah Battery, Charger, and Angle Grinder Accessories
- Free Parts and Service for Life with Registration
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Product Details
RIDGID introduces the 18-Volt OCTANE Brushless Cordless 4.5 in. Angle Grinder Kit with Grinding Disc, Cut-Off Wheel, one 4.0 Ah Battery and Charger. The Brushless 4-1/2 in. Angle Grinder delivers unmatched performance in a cordless package. This grinder delivers an industry leading 10,000 RPM. OCTANE tools utilize high performance brushless motors for increased power and runtime. State of the art OCTANE electronics are built to handle maximum power from OCTANE batteries. The battery in this kit gets up to 4X the runtime of standard lithium-ion batteries and is built for high performance and are protected from overheating, overloading and overcharging through its Triple Protection Electronics design. Its chemistry allows for maximum performance in temperatures as low as minus 4 degree and up to 120 degree F, so you can confidently use them year-round. The charger is compatible with all RIDGID 18-Volt Batteries. Backed by the Industry Leading Lifetime Service Agreement, the 18-Volt OCTANE Cordless Brushless 4-1/2 in. Angle Grinder Kit includes a 4.0 Ah Battery, an 18-Volt Charger, a spanner wrench, a grinding wheel, an auxiliary handle and an operator's manual.
- Octane brushless 4-1/2 in. angle grinder: LED overload indicator helps extend motor life
- Octane brushless 4-1/2 in. angle grinder: tool free guard design: easily change the position of the guard for increased productivity
- Octane brushless 4-1/2 in. angle grinder: 3-position auxiliary handle provides optimal control and versatility on the jobsite
- Octane brushless 4-1/2 in. angle grinder: ergonomic slim grip for maximum comfort during extended use
- Qctane brushless 4-1/2 in. angle grinder: lock-off protection: prevents accidental start, if the battery is installed while the tool lock is on, the tool will not operate
- Octane brushless 4-1/2 in. angle grinder: hex grip allows for easier control during use
- 4.0 Ah battery: up to 4X more run time compared to standard lithium-ion batteries
- Charger: compatible with all RIDGID 18-Volt batteries
- 100% compatible: works with all RIDGID 18-Volt batteries, tools and chargers
- Lifetime service agreement with registration within 90-days of purchase
- Includes: 1 R86042 18-Volt octane brushless 4-1/2 in. angle grinder, 1 spanner wrench, 1 grinding wheel, 1 auxiliary handle, 1 R87004 18-Volt 4.0 Ah battery, 1 R86093 18-Volt charger and operator's manual
- RIDGID: powerful, durable, professional
- Click here for more information on Electronic Recycling Programs
- Return Policy
- California residents
Specifications
Dimensions: H 6.06 in, W 5.04 in, D 13.46 in
Questions & Answers
48Questions
Q:what battery do I use for R86041
by|Oct 5, 2023
2 Answers
Q:Why does the product description say "Cut-off wheel" but the manual says... "Operations such as cutting-off are not recommended
to be performed with this power tool. Operations for
which the power tool was not designed may create a
hazard and cause person
by|Aug 15, 2023
1 Answer
Q:is the switch one better then the paddle one
by|Jun 19, 2023
3 Answers
Q:Lost my spanner wrench for the grinder, where can I purchase another one?
by|May 12, 2023
2 Answers
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Dec 23, 2021
My flap disk grinder w/brass handle
I had to buy a MAX Output 18v battery. All of my older batteries would not last but less than a minute. Now run just fine for my welding projects.
by
Mar 29, 2020
This is a decent grinder with the exception of the on and off switch. Its seems flimsy and likely...
This is a decent grinder with the exception of the on and off switch. Its seems flimsy and likely to break. Switch design needs to change. Contact me for a better design.
by
Mar 7, 2020
Not Up to the Job and Bested by a $25 Corded Grinder
I purchased this 18v 4.5 inch Grinder and $12 diamond blade to cut an old 6 inch pipe. I went through both my full high capacity batteries and the pipe was winning. I proceeded to take out my old $25 corded 4 inch grinder with a $2 blade and 100 feet of extension cord. My old grinder and cheap blade made short work of the task. I attempted to return online, but was given an error code. I recommend buying a corded tool if possible even if you need to use a generator to power it in a remote location.
by
Jun 5, 2019
Been doing some renovations lately and adding some new tools to the arsenal. Had heard good thing...
Been doing some renovations lately and adding some new tools to the arsenal. Had heard good things about the Ridgid brand and the Lifetime Service Agreement as well. This is now the 6th Ridgid tool I have bought in the last several months and I have been impressed with all of them: build quality, features, tool performance and value proposition. This grinder and a JobMax multi-tool were part of an Octane promotion and was free with the purchase of two drivers and two batteries. Just started using the grinder, but really happy with my purchase and the knowledge that the LSA is there if needed going forward. Definitely recommend!
by
Mar 22, 2019
Ethics disclosure: Ridgid was kind enough to send out this grinder ahead of release for testing a...
Ethics disclosure: Ridgid was kind enough to send out this grinder ahead of release for testing and review. However, I am not paid and I am under no obligation to give a positive review. the thoughts expressed are my own opinion based on factors such as price, performance, ergonomics, and value.
Let me start with ergonomics. This grinder has a much better feel in the hand compared to the previous model, thanks to a much slimmer main grip and more rubber overmolding around the gripping area. Over extended grinding and wire wheeling jobs you'll enjoy the extra comfort.
Power is quite impressive and is far better than the previous model. It has plenty of power to cut full depth in solid steel, cut rebar with ease, flat stock, angle iron, round stock, and small pipe.
Runtime is decent for the power output and you can expect between 13-20 minutes of grinding time on a 9ah Octane battery applying medium to heavy pressure.
Runtime when cutting rebar is excellent and you can expect somewhere around 110-120 cuts through 1/2" rebar on a 9ah Octane Battery.
Performance when using flap discs, as well as wire wheels is also also excellent and has plenty of power for both applications.
Concrete cutting performance is great as well and this grinder cuts through cinder block like butter when equipped with an abrasive concrete cutting disc.
Overall this new grinder is an excellent upgrade from the previous model in power and ergonomics. At the same pricing as the previous model, it's also a great value and it probably has the best power per dollar on the market.
I highly recommend this grinder to anyone who does some serious metal working and needs the flexibility of cordless and power of corded.
by
Feb 6, 2019
This grinder is just an awesome tool to have. I do a lot of wood carving, and this is the only gr...
This grinder is just an awesome tool to have. I do a lot of wood carving, and this is the only grinder I reach for when starting a job.
The first thing that stands out when using this grinder is the OCTANE power. I can cut, grind or carve through anything without the loss of power as the smart batteries constantly supplies what it needs. Not only is it extremely powerful, the comfort of this in the hands is amazing. It allows for a solid grip in the tool because of the textured handle, and I don't have to worry about it slipping. It also conforms around the palm very nicely.
Another awesome feature that is simple, but appreciated is how easy it is to adjust the guard. I am constantly working at different angles, so to be able to push a button and adjust the guard position in seconds is awesome for me. One other thing I really like is the the lock button, and how easy it is to use when you tighten/loosen the disk
I really love this grinder, and it the only one I use now. Even carving with a King Arthur's chain wheel is awesome. Definitely give this a try!
by
Jan 31, 2019
A grinder is not something I use often in my shop but when I need one, this has been a great tool...
A grinder is not something I use often in my shop but when I need one, this has been a great tool to have. I mostly use mine to cut metal or cut tile backing board. The new grinder has a removable filter cover so you can clean out the dust and small particulate that builds up at the base of the handle. Battery run time was always an issue with the older grinder but the new Octane platform has far exceeded my expectations when doing comparisons. Great product!
by
Jan 31, 2019
This is a solid angle grinder. It has an overload protection LED that flashes to let you know to...
This is a solid angle grinder. It has an overload protection LED that flashes to let you know to ease up on the tool. I've only had this happen while using a flap disk to do some power carving in wood. However, I was putting tons of pressure on the tool to see what it'd take to have the overload come on.
Using a grinding disk, cut-off wheel, and wire wheel never made the over load LED come on. The tool is well balanced and has lots of power. I'd recommend this product without hesitation.
by
Nov 4, 2023
Makes Quick work of 4 amp battery
This thing eats batteries like they’re 25 cent chicken wings on nickel beer night
by
Response from RIDGIDNov 6, 2023
Hello, John - We are sorry to hear that you aren't getting the runtime you were hoping for! Would you mind sending us an email at Reviews@RIDGIDmail.com? We would like to learn more so we can try to improve your experience.
Oct 25, 2023
by
0/0
Compare Similar Items
Cordless/Corded | |||
|---|---|---|---|
Cordless | Cordless | Cordless | Cordless |
Wheel Diameter (in.) | |||
4-1/2 in | 4.5 in | 4.5 in | 4.5 in |
Power Tool Features | |||
Adjustable Handle Position, Lock On Switch, Spindle Lock | Adjustable Handle Position, Blade Guard System, Side Handle | No Additional Features | Adjustable Handle Position |
Amperage (A) | |||
0.0 A | 0 A | 0 A | 0.0 |
Voltage (V) | |||
18 V | 18 | 20 V | 20 V |
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