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🔧 Power Meets Precision in Your Hands!
The DEWALT 20V MAX* 1/4 in. Brushless Cordless Impact Driver (Tool Only) (DCF840B) is engineered for high performance with a brushless motor delivering 1,700 in-lb of torque and a maximum speed of 3,200 RPM. Its compact design ensures easy access to tight spots, while the integrated 3-LED work light enhances visibility in low-light conditions. Perfect for professionals seeking efficiency and control, this tool is a must-have for any serious project.





| Brand | DEWALT |
| Power Source | Battery Powered |
| Maximum Rotational Speed | 3.2E+3 RPM |
| Voltage | 20 |
| Amperage | 4 Amps |
| Maximum Chuck Size | 0.25 Inches |
| Color | Yellow |
| Included Components | Tool,Belt Hook |
| Special Feature | Variable Speed |
| Product Dimensions | 4.8"L x 4"W x 9"H |
| Material | Metal |
| Maximum Torque | 1700 Inch Pounds |
| Speed | 3200 RPM |
| Item Weight | 0.01 Ounces |
| Maximum Power | 300 Watts |
| Item Torque | 1.7E+3 Inch Pounds |
| Drill Type | Impact Driver |
| Is Electric | No |
| UPC | 885911725927 |
| Drilling Capacity Wood | 0.25 Inches |
| Manufacturer | DEWALT |
| Drilling Capacity Metal | 0.24 Inches |
| Part Number | DCF840B |
| Item Weight | 0.01 ounces |
| Item model number | DCF850B |
| Item Package Quantity | 1 |
| Special Features | Variable Speed |
| Batteries Included? | No |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Warranty Description | 3 year limited warranty/1 year free service contract/90 day money back guarantee |
E**D
Excellent tool and priced right 👍
I like DeWalt cordless tools. Batteries are easy to get and after market ones are very affordable. This tool is compact and powerful. I'm replacing an older 18 volt that still works just wanted to replace it before it gives out.
R**R
VERY GOOD BUY
Very good product very fast delivery good money value I recomend this seller++A
B**L
Buffalobk
Freaky is expensive but the quality is nearly perfect
H**H
Best price
I have had a Dewalt impact driver for Many Years, a 12 volt then a 20 volt, my 20 volt stopped working in middle of job, Amazon delivered a replacement next day , love this tool has lots of power, I tried my 12 volt overnight, it is weak compared to the 20 volt
C**N
Works great
It works great and easy to use.
A**R
No clip
The quality is good, but every picture shows the clip for a tool belt and it doesn't actually come with it. Very miss leading so now I have to order one.
T**T
Strong hammer
Strongest and pretty durable. Used everyday installing garage doors. Highly recommend for continuous use.
E**M
Works great
Great tool for the price
M**A
Excelente, me encantó, buena herramienta, velocidad variable en el gatillo, muy cómodo, super recomendado.
Trustpilot
1 day ago
3 weeks ago