DEWALT DCF850B-NBX 20V Compact 1/4 in Impact Driver
- Torque: 1825 in-lb
- Maximum Torque: 1825 in-lb
- Power Source: Battery
- Maximum Rotational Speed: 3280 rph
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well-specified, high rpm 20V impact driver from a mainstream brand, worth it for buyers already on DeWalt's battery platform who understand it likely ships as a bare tool.
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ASIN: B0CCPS79PKModel: DCF850BCategory: Impact Drivers & Wrenches
Overview
A 20V MAX cordless impact driver from DeWalt, model DCF850B-NBX, rated at 3280 rpm and weighing 2.16 pounds, sized at roughly 6.5 by 3 by 9 inches. It is one of the more frequently purchased tools in this batch based on recent buying activity.
DeWalt's B suffix on this model typically marks a bare tool, meaning battery and charger are usually sold separately, so check the listing carefully for what ships in the box. The compact footprint and high rpm rating make it suited to overhead and tight-space fastening work common on job sites.
- 20V MAX cordless power
- 3280 rpm speed rating
- 2.16 pound weight
- 6.5 x 3 x 9 inch size
Who it's for
This suits tradespeople and DIYers already using DeWalt's 20V MAX battery platform who want a fast, compact impact driver. It is less suited to buyers who need a complete kit with battery and charger included straight out of the box.
Pros and cons
- High 3280 rpm speed rating
- Compact 2.16 pound weight
- Fits DeWalt's widely used 20V MAX battery platform
- Likely sold as a bare tool, no battery
- Torque figures are not listed
Performance notes
The 3280 rpm rating and 20V power point to quick fastening speed, and the 2.16 pound weight keeps the tool maneuverable in tight spots. The listed amperage figure describes battery draw rather than sustained torque output, and torque itself is not specified.
Specifications
| Brand | DeWALT |
|---|---|
| Model | DCF850B |
| Dimensions & fit | |
| Maximum Chuck Size | 1 Inches |
| Item Weight | 2.16 poundslower than 70% of 184 impact drivers & wrenches |
| Item Dimensions L X W X H | 6.5 × 3 × 9 inches |
| Capacity & performance | |
| Maximum Rotational Speed | 3280 rph |
| Speed | 3250 RPM |
| Drilling Capacity Wood | 1 inch |
| Drilling Capacity Metal | 1 inch |
| Battery Capacity | 5000 mAh |
| Number Of Speeds | 3 |
| Power & efficiency | |
| Power Source | Battery |
| Voltage | 20 voltshigher than 54% of 171 impact drivers & wrenches |
| Amperage | 16 amps |
| Maximum Power | 336 watts |
| Construction & materials | |
| Material Type | Metal, Plastic |
| Color | Black, Gray |
| Included components | |
| Included Components | Belt Clip, Impact Driver |
| Other details | |
| Torque | 1825 in-lbhigher than 64% of 75 impact drivers & wrenches |
| Maximum Torque | 1825 in-lbhigher than 66% of 68 impact drivers & wrenches |
| Drill Type | Impact Driver |
| Is Electric | Yes |
| Item Type Name | Impact Driver |
| Additional Features | Lightweight |
Closest rivals on specs
Frequently asked questions
Does the DeWalt DCF850B come with a battery?
The B suffix in DeWalt's naming typically marks a bare tool, so check the listing to confirm whether a battery and charger are included.
What is the speed rating of the DCF850B?
It is rated at 3280 rpm.
How much does the DCF850B weigh?
2.16 pounds.