DEWALT DCF809B Impact
- Impact
- 16 amps
- Battery
- 2.16 pounds
- Better rated than 62%
- More reviewed than 95%
A compact bare-tool impact driver for people already on the 20V MAX platform who value size and weight over a stated torque number.
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How it ranks among the 284 impacts we track
4.7★ across 3,300 Amazon ratings, Bayesian-smoothed toward the category average.
3,300 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
700+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 284 impacts we track - how the scorecard works · full impacts data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
DeWALT's DCF809B is a 20V MAX cordless impact driver with a short 8 by 6 by 2.5 inch head, weighing 2.16 pounds, built for driving screws and fasteners where a full-length driver will not fit. The B suffix on the model number indicates it ships as a bare tool, without battery or charger.
Rated at 9,200 rpm no-load speed, it runs on the same 20V MAX battery line as DeWALT's wider tool range, so the appeal is largely about adding a compact driver to a battery pool you already own. No torque figure is listed in the spec sheet, so buyers comparing heavy-duty driving jobs should look for that number elsewhere before assuming this matches larger DeWALT impact drivers.
- 20V MAX cordless platform
- 9,200 rpm no-load speed
- 8 x 6 x 2.5 inch compact body
- 2.16 pound tool weight
Who it's for
Fits tradespeople and DIYers already invested in 20V MAX DeWALT batteries who want a lighter, shorter driver for cabinetry, trim, or overhead work. Less suited to someone starting from scratch who needs a battery and charger in the box, or who wants a published torque spec to compare against other brands.
Strengths and trade-offs
Drawn from this product's published specifications.
- Compact 8-inch body for tight spaces
- Light at 2.16 pounds for repeated overhead use
- Runs on the shared 20V MAX battery platform
- Sold as a bare tool, no battery or charger
- No torque spec listed for comparison
Performance notes
The 9,200 rpm no-load speed points to a fast driving action, but with no torque figure supplied, actual stopping power on long lag bolts or dense lumber is not something the spec sheet confirms. At 2.16 pounds and 8 inches long, it is built for reach into cabinets and stud bays rather than for maximum leverage.
Specifications
| Brand | DeWALT |
|---|---|
| Model | DCF809B |
| Amperage | 16 amps |
| Power Source | Battery |
| Item Weight | 2.16 pounds |
| Voltage | 20 volts |
| Dimensions | 8 × 6 × 2.5 inches |
Other DeWALT impacts
How it compares
This product against the closest alternatives we track in impacts.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| DEWALT DCF809B ImpactThis product | 4.7 / 5 | 3,300 | 4.5 / 5 |
| Milwaukee 2457-20 ImpactMILWAUKEE | 4.6 / 5 | 8,078 | 4.5 / 5 |
| GEARWRENCH 81270 ImpactGEARWRENCH | 4.7 / 5 | 4,983 | 4.4 / 5 |
| AOBEN AB7331T ImpactAOBEN | 4.4 / 5 | 10,707 | 4.4 / 5 |
| Ryobi P235A ImpactRyobi | 4.7 / 5 | 4,700 | 4.4 / 5 |
Similar impacts from other brands
Questions about the DeWALT DCF809B
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the DEWALT DCF809B come with a battery?
No. The B in the model number marks it as a bare tool, so battery and charger are sold separately.
What is the no-load speed of the DCF809B?
DeWALT lists it at 9,200 rpm.
How much does the DCF809B weigh?
2.16 pounds, with an 8 by 6 by 2.5 inch body.