• icon-wishlist
  • icon-cart
Product selection from DEWALT

Angle Grinder - Cordless - 4 1/2" - 20 V

Article #00275729 Model #DCG412B Format 4 1/2"x20V
This item is not currently available for immediate purchase, but can be ordered by visiting the selected store.
icon-wishlist

Description

This Dewalt DCG412B grinder is equipped with a powerful motor, ideal for cutting and grinding applications. It features Quick-Change(TM) wheel release, which allows for tool free wheel changes without the need for a wrench, as well as a tool-free adjustable cutting guard, which allows for quick repositioning. A two-position side handle puts control and comfort into your hands.Three-year limited warranty. Battery and charger sold separately.

Product specifications

Battery Type
Lithium-ion 20V Max (not included)
Disc Diameter
4 1/2 in
Warranty
90 day money back guarantee, 1 year free service contract, 3-year limited warranty
Revolutions per Minute
7,000 RPM (No Load)
Power Source
Battery

Frequently bought together

3" Silver Steel Knotted Wire Cup Brush icon-wishlist
DEWALT
3" Silver Steel Knotted Wire Cup Brush
Format 3"
Details
Article #00275793
EAB Tool Taper Cut Metal Flat Wheel Industrial Abrasive - Type 1 - 4 1/2" x 5/64" x 7/8" - 10/Pack icon-wishlist
EXCHANGE-A-BLADE
EAB Tool Taper Cut Metal Flat Wheel Industrial Abrasive - Type 1 - 4 1/2" x 5/64" x 7/8" - 10/Pack
Format 4 1/2x5/64"xPK10
Details
Article #34595873
Compact XR Lithium-Ion Battery Pack - 20 V MAX - 2.0 AH icon-wishlist
DEWALT
Compact XR Lithium-Ion Battery Pack - 20 V MAX - 2.0 AH
Format 20V
Details
Article #00275737
XR Lithium-Ion 20V Max Batteries - 2-Pack icon-wishlist
DEWALT
XR Lithium-Ion 20V Max Batteries - 2-Pack
Format 20VxST2
Details
Article #00275698
Lithium-ion Battery Charger - 12-20 V - Plastic - Black icon-wishlist
DEWALT
Lithium-ion Battery Charger - 12-20 V - Plastic - Black
Format 12-20V
Details
Article #00275956
20V Radio Charger with Bluetooth (MD) - Yellow and Black icon-wishlist
DEWALT
20V Radio Charger with Bluetooth (MD) - Yellow and Black
Format 20V
Details
Article #00276322
18V-20V Battery Adapter and Charger Kit icon-wishlist
DEWALT
18V-20V Battery Adapter and Charger Kit
Format 18-20V
Details
Article #00275998

You may also like

4.5-in Angle Grinder icon-wishlist
SKIL
4.5-in Angle Grinder
Format 4 1/2"x6AM
Details
Article #19835437
Angle Grinder - Corded - 4 1/2" icon-wishlist
BOSCH
Angle Grinder - Corded - 4 1/2"
Format 4 1/2"x6.0A
Details
Article #1983144
Small Angle Grinder - 4 1/2" - Set of 2 icon-wishlist
BOSCH
Small Angle Grinder - 4 1/2" - Set of 2
Format 4 1/2"x7.5AMxST2
Details
Article #19836157
Angle Grinder - 4 1/2" - 6 A - 12,000 RPM icon-wishlist
CRAFTSMAN
Angle Grinder - 4 1/2" - 6 A - 12,000 RPM
Format 4 1/2"
Details
Article #00276553
Angle Grinder - 4 1/2" - 7 A icon-wishlist
DEWALT
Angle Grinder - 4 1/2" - 7 A
Format 4 1/2"x7.0AM
Details
Article #00275679
Cordless Angle Grinder - 4 1/2" - 18 V - Teal icon-wishlist
MAKITA
Cordless Angle Grinder - 4 1/2" - 18 V - Teal
Format 4 1/2"x18V
Details
Article #11975411
5-in. Angle Grinder icon-wishlist
MAKITA
5-in. Angle Grinder
Format 5"x10.5A
Details
Article #11975184
Angle Grinder - 4 1/2" icon-wishlist
MAKITA
Angle Grinder - 4 1/2"
Format 4 1/2" 6.0AM
Details
Article #11975279
Cordless Angle Grinder - 4.5'' - 20 V icon-wishlist
CRAFTSMAN
Cordless Angle Grinder - 4.5'' - 20 V
Format 20V
Details
Article #00276537
Small Angle Grinder - 7.5 A - 4.5'' icon-wishlist
CRAFTSMAN
Small Angle Grinder - 7.5 A - 4.5''
Format 4.5"x7.5AM
Details
Article #00276993
Cordless Angle Grinder - Brushless - 4 1/2" - 20V MAX icon-wishlist
DEWALT
Cordless Angle Grinder - Brushless - 4 1/2" - 20V MAX
Format 4 1/2" 20V
Details
Article #00276506
Angle Grinder - 5" - 12 A icon-wishlist
DEWALT
Angle Grinder - 5" - 12 A
Format 5"X12A
Details
Article #0834209
Angle Grinder - 4 1/2" - 18 V - Teal icon-wishlist
BOSCH
Angle Grinder - 4 1/2" - 18 V - Teal
Format 4 1/2"x18V
Details
Article #19835930
4 1/2" X-LOCK Ergonomic Angle Grinder - Bosch - Blue icon-wishlist
BOSCH
4 1/2" X-LOCK Ergonomic Angle Grinder - Bosch - Blue
Format 4 1/2"x10AM
Details
Article #19836365
Small Angle Grinder - 4 1/2" - 7.5 A - Set of 2 icon-wishlist
DEWALT
Small Angle Grinder - 4 1/2" - 7.5 A - Set of 2
Format 4 1/2"x7.5AMxST2
Details
Article #00276216
Bosch Angle Grinder Kit, CORE 18V Battery icon-wishlist
BOSCH
Bosch Angle Grinder Kit, CORE 18V Battery
 
Details
Article #330609712
Bosch Angle Grinder - 4 1/2" icon-wishlist
BOSCH
Bosch Angle Grinder - 4 1/2"
 
Details
Article #330609713
18-V Cordless Grinder icon-wishlist
MAKITA
18-V Cordless Grinder
Format 4 1/2"x18V
Details
Article #11975327
Bosch Angle Grinder - 4.5" icon-wishlist
BOSCH
Bosch Angle Grinder - 4.5"
 
Details
Article #330609714
Bolton Toolway Bolton Power 4 1/2" Angle Grinder - 11000 RPM -6.8 A icon-wishlist
BOLTON
Bolton Toolway Bolton Power 4 1/2" Angle Grinder - 11000 RPM -6.8 A
 
Details
Article #330677761
Bosch Angle Grinder with Paddle Switch - 5" icon-wishlist
BOSCH
Bosch Angle Grinder with Paddle Switch - 5"
 
Details
Article #330609719
Bosch Angle Grinder - 6" icon-wishlist
BOSCH
Bosch Angle Grinder - 6"
 
Details
Article #330609715
Angle Grinder - 10A - 4 1/2" icon-wishlist
DEWALT
Angle Grinder - 10A - 4 1/2"
Format 4 1/2"x10A
Details
Article #0027276
Bosch Tuck Pointer Grinder - 5" icon-wishlist
BOSCH
Bosch Tuck Pointer Grinder - 5"
 
Details
Article #330622807
Bosch Angle Grinder - 5" icon-wishlist
BOSCH
Bosch Angle Grinder - 5"
 
Details
Article #330609716
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 0ms
  • QUESTIONS, PRODUCT
  • bvseo-msg: The resource to the URL or file is currently unavailable.;
Angle Grinder - Cordless - 4 1/2" - 20 V is rated 4.6 out of 5 by 74.
Rated 5 out of 5 by from Works well but a real battery hog. Used this to grind off some epoxy concrete crack sealant. I had two of the smaller DeWalt 20 volt batteries from previous DeWalt cordless purchases. This tool eats up the charges way faster than the others. I could not keep up with one charger and two batteries. Just yesterday, I received my order for a 2-pack of the larger DeWalt 20 volt batteries. That should solve my DIY needs. However, a contractor with serious, prolonged, grinding needs might want to look at the corded model.
Date published: 2014-03-04
Rated 4 out of 5 by from A nice addition to my 20V max tool collection I already have a DeWalt 20V max drill and 1/4 inch driver set and recently got two additional 3.0Ah batteries so I decided to look for additional tools based on that battery system. I also have 2 DeWalt angle grinders, but they are corded and I wanted something I could grab and use quickly without the hassle of pulling power cords out. This was the perfect answer to all those requirements. Although it isn't as strong or as fast (rpm) as the corded grinders it works great for small jobs.
Date published: 2016-11-07
Rated 5 out of 5 by from Great tool ! I use this grinder for sharpening large, heavy blades on farm equipment. Great designed tool.
Date published: 2016-11-10
Rated 5 out of 5 by from Great Grinder Grinder performs great. To get the most out of it, if used in heavy duty grinding though, you need a 4 amp battery. Great tool. Performs well.
Date published: 2017-04-29
Rated 3 out of 5 by from Dewalt 20v grinder Wished I would have done more research on this product. I absolutely love dewalt, growing up as a child watching my father and grandfather work I knew dewalt was and still is the most professional, most reliable battery powered equipment. I own many dewalt 18 and now 20v Li power tools. Heck I even tossed the echo weed trimmer for the dewalt 20v brushless. So the problems I had with the 20v grinder is simple. It eats batteries. A 5aH battery will net you about 5 mins tops for grinding. A 1.5aH battery last about 2mins. I have 2 chargers in my shop so I didn’t see this as much of a problem till I realized the battery’s where too hot to charge after use. It takes about 15-20 mins for the batteries to cool down and take a charge. My second problem was the arbor shaft on mine was either out of balance or bent. Using a grinding wheel it would bounce a lot. And yes, it was installed correctly. I even changed out the grinding nuts with others to try and isolate the troubles. A cut off disc wouldn’t work either because of the vibration it would bounce around. I really wanted to like this as this is actually a 5” grinder. For bigger jobs I use a 7” 3m cubitron 2 disc and when they wear down I save them. Luck would have it the wheels would fit it. After day one with all the problems I took it back to Lowe’s and got the 4-1/2 dewalt brushless and man is it worth the extra $40. I can get nearly 20 minutes of continuous grinding. Dewalt makes great tools. But if unless you are a hobbiest I would go with the better XR brushless. Hope this helps.
Date published: 2018-01-15
Rated 1 out of 5 by from Spindle lock button froze after 2-3 hours use Eats batteries, but good for the occasional grind-down or cut off. I used it to try to even up a small section of concrete and quickly found out that kind of thing is not a for a cordless device. The TERRIBLE thing about this device is the spindle lock button that keeps the disc from turning so you can change discs, suddenly froze up. Can't push it in at all. Tried tapping it lightly, tried PB Blaster, nothing worked. The Dewalt site doesn't even show the part on their exploded diagram so you can't even buy it if it would come apart. I can't recommend the quality or the manufacturer support. Gonna switch to Milwaukee. [This review was collected as part of a promotion.]
Date published: 2020-01-23
Rated 5 out of 5 by from I got this free with a driver/hammer drill combo I bought. I already owned a corded angle grinder I bought just a few months before so I didn't really need it. With that said, I now used this for any grinding I have overhead as it's easier without a cord. Though I sill rather used the corded grinder when I'm cutting anything downward for longer periods of time. I really don't notice a difference between the two since I'm a DIY'er and not a pro, so my use has been limited to my home renovation where I've gutted my 2nd floor to add a 2nd bathroom and redo the flooring. The nice thing about this tool is it came with a decent metal grinding disc. Though I wish it came with a case like my corded grinder.
Date published: 2017-12-01
Rated 1 out of 5 by from Do not buy Don't buy this piece if junk!!! I am a dewalt fan by any measure , but this is junk! It gobbles batteries. I could not keep up with three batteries and two chargers. The amp draw is so high that it fried two of my batteries. One was an older battery but the other one was new ( three months old). Last warning DO NOT BUY!!! [This review was collected as part of a promotion.]
Date published: 2017-12-27
  • y_2020, m_8, d_4, h_15
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.10
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_74
  • loc_en_CA, sid_00275729, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_rona
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 1ms
  • REVIEWS, PRODUCT