Internet #100519983

Model # P421

Store SKU #152332

Store SO SKU #1000795627

0033287139576

18-Volt ONE+ Cordless 4-1/2 in. Angle Grinder (Tool-Only)

  • Up to 6,500 RPM's enable fast and precise work
  • Includes: Side Handle, Grinding Guard and Wheel, Spanner Wrench
  • Over 175 ONE+ Tools – All Work With Any RYOBI ONE+ 18V Battery
$ 44 97
Buy More Save More.Spend $149 Save $15 Off Or Spend $199 Save $30 Off Or Spend $249 Save $50 Off on Select RYOBI Tools When Added To Cart.
Promotion Details
Price Valid : 08/03/2020 - 11/02/2020
Buy $149 Get $15 Off, Buy $199 Get $30 Off, Buy $249 Get $50 Off Select RYOBI Tools-SKUs 311937362,206892719,312491503,312493832,301913880,205975768,205648767,100634343,308176530,308848395,312860164,205885687,300234858,309389020,300335930,301289969,301289956,206824269,301289966,312462409,205626511,312860144,301289964,307298546,300509751,304049794,100342149,301913871,301853896,305124211,301913865,305124212,207017500,100342144,206354299,308182766,301916606,206666886,301687024,301913879,205806375,300981191,309069074,205022215,302775352,301854091,205754091,311937301,300225308,313269538,301848739,206955207,206588778,301853890,305439007,301289957,303325964,301848641,206955184,303579585,304206811,100519983,205975756,206955202,301289973,301913870,300258095,304129286,304129279,307627867,307730215,308746324,307627868,300997599,203810823,306925921,311738438,305269932,302238848,206405601,312127045,312999790,311738437,204667878,204646227,205792768,305261211,302014623,307332514,202868525,313933395.
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Frequently Bought Together

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Product Overview

18-Volt Battery Platform

18-Volt Battery Platform

No matter your interests or skill level, we can power it. With cordless lithium-ion technology, RYOBI can power you through all types of projects from drilling, driving, cutting, and fastening, to lighting, plumbing, cooling, and rocking, to trimming, edging, mowing, and clearing – and so much more.

World’s Largest 18V Tool System

World’s Largest 18V Tool System

RYOBI gives you the ultimate in versatility and selection to get the job done. From household tasks to the jobsite to recreation and everything in between, there is a ONE+ product for you.

RYOBI ONE+ Delivers More

RYOBI ONE+

RYOBI has never changed – and will never change – the 18V ONE+ battery platform, meaning our newest products & batteries fit the original RYOBI tools and batteries from 1996. RYOBI ONE+ is the system that delivers more.

Power Tools

Power Tools

Whether it’s a weekend DIY project or a full remodeling job, RYOBI ONE+ has you covered with all the tools you need to get the job done.

Lawn & Garden Equipment

Lawn & Garden Equipment

From trimming and edging, to mowing and clearing, knock out lawn care with one battery platform that does it all.

Air Tools

Air Tools

Make your next nailing, stapling, inflating, and deflating jobs a breeze with cordless air tools from RYOBI ONE+.

Lifestyle Products

Lifestyle Products

Enjoy our expansive lineup of lifestyle, craft, and specialty tools including audio equipment, lights, fans, vacuums, soldering irons, and much more!

RYOBI ONE+

RYOBI ONE+

Put the power of 18V ONE+ at your fingertips from the cordless system that delivers more.

18V Lithium

18V Lithium

Lithium-ion battery technology with fade-free power and Extreme Weather Performance to withstand the toughest conditions.

3 Year Limited Warranty

3 Year Limited Warranty

RYOBI Portable Power Tools and Bench/Stationary tools purchased on or after 1.1.11 are covered by a 3-year warranty.

World’s Largest

World’s Largest

The RYOBI 18V ONE+ System gives you the ultimate in versatility and selection.

100% Compatible

100% Compatible

All RYOBI 18V tools and batteries are 100% forwards and backwards compatible. Any RYOBI 18V tool works with any of our 18V batteries.

90 Day Guarantee

90 Day Guarantee

Buy with confidence with our 90 day no-risk satisfaction guarantee.

  • Up to 6,500 RPM's enable fast and precise work
  • Includes: Side Handle, Grinding Guard and Wheel, Spanner Wrench
  • Over 175 ONE+ Tools – All Work With Any RYOBI ONE+ 18V Battery
RYOBI introduces the 18-Volt ONE+ Cordless 4-1/2 in. Angle Grinder (Tool-Only). The ONE+ 4-1/2 in. Angle Grinder offers cordless convenience and the power of 6500 RPM for fast and precise work. This tool offers a host of user-friendly features, such as onboard wrench storage, the comfortable GRIPZONE overmold, and a 3-position side handle to help reduce fatigue. It also has an intuitive trigger switch. Best of all, it is part of the RYOBI ONE+ System of over 175 Cordless Tools that all work on the same battery platform. Backed by the RYOBI 3-Year Manufacturer's Warranty, the 18-Volt ONE+ 4-1/2 in. Angle Grinder includes a side handle, a Type 27 grinding guard, a grinding wheel, a spanner wrench, and an operator's manual. Battery and charger sold separately.

Product Overview

  • Up to 6,500 RPM's enable fast and precise work
  • Includes: Side Handle, Grinding Guard and Wheel, Spanner Wrench
  • Over 175 ONE+ Tools – All Work With Any RYOBI ONE+ 18V Battery
Model #: P421
Sku #: 152332
Internet #: 100519983

RYOBI introduces the 18-Volt ONE+ Cordless 4-1/2 in. Angle Grinder (Tool-Only). The ONE+ 4-1/2 in. Angle Grinder offers cordless convenience and the power of 6500 RPM for fast and precise work. This tool offers a host of user-friendly features, such as onboard wrench storage, the comfortable GRIPZONE overmold, and a 3-position side handle to help reduce fatigue. It also has an intuitive trigger switch. Best of all, it is part of the RYOBI ONE+ System of over 175 Cordless Tools that all work on the same battery platform. Backed by the RYOBI 3-Year Manufacturer's Warranty, the 18-Volt ONE+ 4-1/2 in. Angle Grinder includes a side handle, a Type 27 grinding guard, a grinding wheel, a spanner wrench, and an operator's manual. Battery and charger sold separately.

Info & Guides

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Exclusive
Brand RYOBI Makita Milwaukee Makita
Name 18-Volt ONE+ Cordless 4-1/2 in. Angle Grinder (Tool-Only) 6 Amp Corded 4 in. Lightweight Angle Grinder with Grinding Wheel, Wheel Guard Side Handle Hard Case 7 Amp Corded 4-1/2 in. Small Angle Grinder with Sliding Lock-On Switch 7.5 Amp 4-1/2 in. Paddle Switch Angle Grinder
Price
$44.97
$54.00
$64.97
$89.00
Ratings (1531) (126) (365) (150)
Amperage (amps) 0 6 7 A 7.5
Power Tool Features Adjustable Handle Position,Grinding Wheel Included,No Additional Features,No Tool Wheel Change,Spindle Lock Grinding Wheel Included,Lock On Switch,Second Handle Included,Spindle Lock Adjustable Handle Position,Lock On Switch,No Tool Wheel Change,Spindle Lock Lock On Switch,No Tool Wheel Change,Second Handle Included
Cordless/ Corded Cordless Corded Corded Corded
Wheel Diameter (in.) 4.5 in 4 in 4.5 in 4.5 in
Voltage (volts) 18
Battery Amp Hours 0.0
View Product View Product View Product View Product

Specifications

Dimensions

Product Depth (in.)
13.701
Product Height (in.)
5.443
Product Width (in.)
5.669
Wheel Diameter (in.)
4.5 in

Details

Amperage (amps)
0
Arbor Size
5/8 x 11 UNC
Batteries Included
No
Battery Amp Hours
0.0
Battery Power Type
Lithium Ion
Battery Size
Lithium Ion
Battery/Charger
Tool Only
Battery/Charger
Tool Only
Charger Included
Charger Not Included
Color Family
Green
Condition
New
Cordless Tool Type
Angle Grinder
Cordless/ Corded
Cordless
Electronic Speed Control
Yes
Grinder Switch Type
Trigger
Maximum Speed (rpm)
6500
Motor Type
Brushed
Number of Batteries Included
0
Number of Batteries Included
0
Power Tool Features
Adjustable Handle Position,Grinding Wheel Included,No Additional Features,No Tool Wheel Change,Spindle Lock
Product Weight (lb.)
6.18lb
Returnable
180-Day
Tools Product Type
Power Tool
Variable Speed
No
Voltage (volts)
18

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
3 Year Limited Warranty

Specifications

Dimensions

Product Depth (in.)
13.701
Product Height (in.)
5.443
Product Width (in.)
5.669
Wheel Diameter (in.)
4.5 in

Details

Amperage (amps)
0
Arbor Size
5/8 x 11 UNC
Batteries Included
No
Battery Amp Hours
0.0
Battery Power Type
Lithium Ion
Battery Size
Lithium Ion
Battery/Charger
Tool Only
Battery/Charger
Tool Only
Charger Included
Charger Not Included
Color Family
Green
Condition
New
Cordless Tool Type
Angle Grinder
Cordless/ Corded
Cordless
Electronic Speed Control
Yes
Grinder Switch Type
Trigger
Maximum Speed (rpm)
6500
Motor Type
Brushed
Number of Batteries Included
0
Number of Batteries Included
0
Power Tool Features
Adjustable Handle Position,Grinding Wheel Included,No Additional Features,No Tool Wheel Change,Spindle Lock
Product Weight (lb.)
6.18lb
Returnable
180-Day
Tools Product Type
Power Tool
Variable Speed
No
Voltage (volts)
18

Warranty / Certifications

Certifications and Listings
UL Listed
Manufacturer Warranty
3 Year Limited Warranty

Questions & Answers

Will this grinder work to cut metal?

My question refers to the 4 1/2 in Angle Grinder.
Asked by: George
Per the product description, Model P421 is intended as a grinder and Model P423 is intended as a grinder / cut-off tool. Warnings in the Model P421 manual (page 8) include: - This power tool is intended to function as a grinder, sander, or polisher. - Operations such as wire brushing or cutting-off are not recommended to be performed with this power tool. - Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation. - Use ONLY Type 27 depressed center grinding wheels (such as the one provided with this product). NEVER attach a Type 1 straight or cut-off wheel to this angle grinder. Use for any other purpose is not recommended and creates a hazard, which will result in serious injury
Answered by: mike88310
Date published: 2020-08-04

Does this include the battery

Asked by: Antz
No. Not at less than $50. You can find special sales through the year that include a battery and / or charger for 100-150 depending what batteries. You really should have a 4ah battery to run this long enough.
Answered by: telectool
Date published: 2020-07-10

Will this cut through bike locks quite quickly? And how big is it, will it be bulky if I carry it...

Will this cut through bike locks quite quickly? And how big is it, will it be bulky if I carry it under a jacket? Thanks.
Asked by: BigDave
Hilarious. Make sure you wear eye protection while you steal bikes. BTW, if you can afford this tool, why are you stealing bikes?
Answered by: wondersofwonders
Date published: 2020-08-04

Can you convert this grinder into a buffer?

Asked by: Cacov94
Too high of rpm
Answered by: Punus
Date published: 2020-04-11
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