DEWALT DCF845B
Score: 82/100
DEWALT DCF870B
Score: 72/100Rankings
The DEWALT DCF845B is a brushless 20V MAX XR impact driver delivering 1,825 in-lbs of torque and 3,400 RPM with 3-speed settings. It offers a balance of power and compactness, though the tool-only configuration requires separate battery purchase. It is best suited for professional contractors needing versatile fastening capabilities.
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 | | |
|---|---|---|
1,825 in-lbbest | 500 in-lb | |
20 Vbest | 20 Vbest | |
3,400 RPMbest | 3,000 RPM | |
— | 4,200 IPMbest | |
| ↓ lower better | 2.2 lbsbest | 2.2 lbsbest |
| ↓ lower better | 5.1 in | 4.6 inbest |
3 count | 9 countbest | |
3 yearsbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Maximum Torque (in-lb) | 1825 in-lb | 500 in-lb |
Maximum Speed (RPM) (RPM) | 3400 RPM | 3000 RPM |
Build & Design(1) | ||
Tool Length (in) | 5.1 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 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.
