DeWalt · Updated October 2026
DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only): price, specs & release date
DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only), released 2025-09. Every price and spec below is linked to its source and dated — no guesses.
Source: ohiopowertool.com verified ✓ corroborated verify in ledger
Is the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) a good buy?
At $229, the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) is #16 cheapest of the 20 angle grinders we track, where the median is $169. On the spec sheet, its max of 11000 rpm is above the median of the 20, and its disc size of 4.5 in is at the median of the 20.
Specifications
| Price (US) | $229 Ohio Power Tool's price for the bare tool (battery and charger sold separately), shown in stock; Tool Nut lists it at the same $229.00 |
|---|---|
| Brand | DeWalt |
| Released | 2025-09 · dewalt.mediaroom.com, read 2026-10-15 |
| Disc size (in) | 4.5 in |
| Power source | cordless |
| Amps or voltage | 20 V |
| Max (rpm) | 11000 |
| Brushless | Yes |
| Switch type | paddle |
| No volt release | Yes |
| Weight (lb) | — |
Source: ohiopowertool.com (read 2026-10-15) · corroborated by assets.dewalt.com (read 2026-10-15).
How we checked
Read on 2026-10-15: Ohio Power Tool's US listing for the DCG402B (tool only) prints $229.00 and shows it in stock, and its feature list and specifications give the 4-1/2 in. wheel diameter, the brushless motor's 11,000 RPM no-load speed and the lock-off paddle switch with no lock-on; the listing's longer description paragraph wrongly describes an ATOMIC die grinder, but its title, included items and feature list are the DCG402's. DeWalt's own instruction manual for the DCG400 and DCG402 describes a 20V MAX paddle switch small angle grinder and says the paddle switch has a no-volt release function. DeWalt's September 8, 2025 release names the 4.5 in. DCG402 among the ATOMIC grinders joining the DCG400, debuting at FABTECH 2025 and available that fall. Weight is left blank: DeWalt's product page gives 4.78 lb as the assembled product weight while Ohio Power Tool prints 3.55 as its shipping weight, so no bare-tool weight can be stated.
Is the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) worth it vs cheaper angle grinders?
DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) against its closest cheaper and pricier angle grinders on the specs that matter — every value sourced. See all 20 ranked
| Product | Price | Disc size (in) | Power source | Amps or voltage | Max (rpm) | Brushless |
|---|---|---|---|---|---|---|
| DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) this | $229 | 4.5 in | cordless | 20 V | 11000 | Yes |
| DeWalt DCG413B 20V MAX XR Brushless 4-1/2 in. Paddle Switch Angle Grinder (Tool Only) | $199 | 4.5 in | cordless | 20 V | 9000 | Yes |
| Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder | $239 | 5 in | corded | 13.5 A | 11000 | No |
Frequently asked questions
How much does the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) cost?
The DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) has a US price of $229 (Ohio Power Tool's price for the bare tool (battery and charger sold separately), shown in stock; Tool Nut lists it at the same $229.00), as of 2026-10-15.
How does the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) compare on price?
At $229, the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) is #16 cheapest of the 20 angle grinders we track, where the median is $169.
When was the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) released?
The DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) was released 2025-09.
What are the DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only)'s key specs?
DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) (DeWalt): Disc size (in) 4.5 in, Power source cordless, Amps or voltage 20 V, Max (rpm) 11000, Brushless. Full sourced spec sheet verified 2026-10-15.
Price of record: $229 at ohiopowertool.com, 2026-10-15. Other retailers may be lower — check the current price:
See DeWalt DCG402B ATOMIC 20V MAX 4-1/2 in. Angle Grinder (Tool Only) on Amazon As an Amazon Associate we earn from qualifying purchases.Similar angle grinders
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Compare with
Cheaper angle grinders
- DeWalt DCG413B 20V MAX XR Brushless 4-1/2 in. Paddle Switch Angle Grinder (Tool Only) $199
- Flex FX3171A-Z 24V 5 in. Variable Speed Brushless Angle Grinder with Paddle Switch (Tool Only) $199
- DeWalt DWE43144N 6 in. 13 A E-Clutch Paddle Switch Corded Angle Grinder (No Lock-On) $188
- Makita XAG04Z 18V LXT Brushless 4-1/2 in./5 in. Cut-Off/Angle Grinder (Tool Only) $179
- Bosch GWS13-50 5 in. Corded Angle Grinder $159
- Makita GA5052 4-1/2 in./5 in. Paddle Switch Corded Angle Grinder (AC/DC) $129
Step up
- Metabo WEV15-125 Quick 4-1/2 in./5 in. 13.5 A Variable Speed Corded Angle Grinder $239
- Milwaukee M18 FUEL 2980-20 4-1/2 in./6 in. Braking Grinder Paddle Switch No-Lock (Tool Only) $249
- DeWalt DCG415B 20V MAX XR Brushless 4-1/2 in./5 in. Small Angle Grinder with POWER DETECT (Tool Only) $279
- DeWalt DCG400B ATOMIC 20V MAX 4 in. Angle Grinder (Tool Only) $299
More from DeWalt
- DeWalt DWE402 4-1/2 in. Small Angle Grinder $117
- DeWalt DCG413B 20V MAX XR Brushless 4-1/2 in. Paddle Switch Angle Grinder (Tool Only) $199
- DeWalt DWE43144N 6 in. 13 A E-Clutch Paddle Switch Corded Angle Grinder (No Lock-On) $188
- DeWalt DCG415B 20V MAX XR Brushless 4-1/2 in./5 in. Small Angle Grinder with POWER DETECT (Tool Only) $279
- DeWalt DCG400B ATOMIC 20V MAX 4 in. Angle Grinder (Tool Only) $299