DEWALT DCF809B
Score: 78/100
DEWALT DCF870B
Score: 72/100Rankings
The DeWalt DCF809B is a compact brushless cordless impact driver designed for professional-grade performance in tight spaces. It delivers high torque in a small form factor, though the tool-only configuration requires additional investment in batteries. It is best suited for professionals working in confined areas where standard drivers cannot fit.
The DEWALT DCF870B is a specialized 20V MAX XR hydraulic impact driver designed for noise-sensitive environments, offering up to 57% quieter operation than standard tools. While it delivers 500 in-lbs of torque, the softer hydraulic pulse limits its effectiveness for heavy-duty applications compared to mechanical drivers. It is best suited for professionals working in residential cabinetry, electrical, and plumbing installs who need a compact tool for tight spaces.
| Attribute | | |
|---|---|---|
1,700 in-lbbest | 500 in-lb | |
20 Vbest | 20 Vbest | |
— | 3,000 RPMbest | |
— | 4,200 IPMbest | |
| ↓ lower better | 2 lbsbest | 2.2 lbs |
| ↓ lower better | 9 in | 4.6 inbest |
3 count | 9 countbest | |
0 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Maximum Torque (in-lb) | 1700 in-lb | 500 in-lb |
Maximum Speed (RPM) (RPM) | Variable RPM | 3000 RPM |
Impacts Per Minute (IPM) (IPM) | Variable IPM | 4200 IPM |
Build & Design(2) | ||
Tool Weight (lbs) | 2.0 lbs | 2.2 lbs |
Tool Length (in) | 9.0 in | 4.6 in |
Features(2) | ||
LED Light Count (count) | 3 count | 9 count |
Chuck Type | 1/4-Inch Hex | 1/4-inch hex |
Controls(2) | ||
Speed Settings | 3-speed | 2-speed |
Trigger Type | Variable Speed | Variable speed |
Products in the top-left offer the best value (high score, low price).
Professional reviewers highlight that the DCF850 delivers specifications matching larger DeWalt models in a significantly more compact form factor. The brushless motor is tuned to provide the same torque and RPM performance as full-size competitors while maintaining the compact ATOMIC design philosophy.
Consumer reviews reflect strong user satisfaction with praise focused on accessibility in confined spaces, power-to-size ratio, precision and control, and build quality.
Professional reviewers praise the DEWALT DCF870B for its high productivity in driving small to medium screws, citing its 3,000 RPM, 4,200 IPM, and 500 in-lbs torque as strong for a hydraulic tool. It is recognized as the quietest impact driver available, offering significant noise reduction. However, experts note that the softer hydraulic blows limit its effectiveness compared to standard drivers, making it less suitable for heavy-duty applications requiring maximum impact force.
Search results lack direct consumer reviews or forum discussions, so no specific praise or complaints from everyday users are available. Professional sources emphasize the tool's quietness and compactness without providing user feedback quotes.
