










🔧 Quiet power that gets the job done faster—because your projects deserve the best.
The DEWALT 20V MAX XR 1/4" Cordless Quiet Hydraulic Impact Driver (DCF870B) is a top-rated, brushless, battery-powered tool designed for professionals seeking maximum torque (500 in-lb) and up to 57% quieter operation. Its advanced hydraulic mechanism delivers consistent, fast driving speeds—up to 40% faster than competitors—while its compact, lightweight design makes it ideal for tight spaces. Batteries and charger sold separately.







| ASIN | B0DQYPZLMR |
| Amazon Bestseller | #487,101 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #69,060 in Power Tools (DIY, Tools & Garden) |
| Are Batteries Included | No |
| Brand | DEWALT |
| Color | Black, Yellow |
| Customer Reviews | 4.8 4.8 out of 5 stars (507) |
| Date First Available | January 22, 2025 |
| Included Components | (1) DCF870 XR 1/4" Quiet Hydraulic Impact Driver; (1) Belt Hook |
| Item Weight | 1.16 Kilograms |
| Laser Class | Variable speed, portable |
| Material | Metal Blend |
| Maximum Rotational Speed | 3000 RPM |
| Model Number | DCF870B |
| Power Source | Battery Powered |
| Product Dimensions | 11.68 x 8.64 x 20.9 cm; 1.16 kg |
| Torque | 500 Inch Pounds |
| Voltage | 20 Volts |
R**O
ビットの種類が少なく、インパクトが若干弱い気がしております。
P**O
Muy buen producto hasta el momento el modelo más reciente y con excelente diseño, su funcionalidad en lo que respecta muy bien, solo me falta la batería de mayor capacidad
T**M
As an HVAC technician, I recently upgraded from the DCF887 to the new DCF870, and I couldn’t be happier. This impact driver is much quieter, and the hydraulic mechanism greatly reduces vibration, making it easy on the wrist even during long installation jobs. One thing I immediately noticed is that the wobbling issue I had with the 887 model is almost completely gone. The bit feels solid and stable, which gives me more control and accuracy. The compact head design is another huge advantage—it fits perfectly into tight spaces where standard impact drivers just can’t go. Overall, it’s a powerful yet smooth tool that’s ideal for HVAC or any trade work that requires precision in confined areas. Highly recommended.
D**H
Love it. I'm finally migrating from my first generation 20v brushed motor DeWalt impact. I expected it to be less powerful, and somewhat less intuitive. I was totally wrong. The torque multiplication is fantastic, just as good if not BETTER than my old unit (I can't say how it is relatively with the other brushless units, but it's probably a little bit lower performance. Three phase brushless systems are superior in every way you can slice it). It's very quiet, I mean probably less than half the decibels of my original. I set some of the iron works bolts that support my first floor to test; the tool itself makes so little noise it's amazing. The only thing that stood out, noise wise, was the actual impact cycles resonating with the steel beams. My 5 year old was sleeping directly above, and he didn't wake up for any of the eight large fasteners. The speed setting is awesome, but it's not just speed, the torque output is higher on speed two for sure, and I do not mean it makes more impact cycles per second (though it does), the actual torque is significantly higher. The speed setting should not be used as a drive restrictor, even though it probably could be with some practice (ballpark, thumb at arms length with one eye closed type of accuracy). I don't think the few mentions of non intuitive feel are fair or even accurate. Fire off one high friction screw into two pieces of pine, and consider your meatware calibrated. It weighs a lot.... A good deal more than my first gen unit. I'll put it this way, I put one of my 60v flex batteries on, and it was almost balanced just right. Price point is.... Eh. Could be better, but honestly, you get what you pay for. Hydraulic cavitation feels very nice, almost unnatural, but very very satisfying. Overall power is in range of expectations for the class for sure. I'm keeping my first gen for dum dum work, this unit is going to my workshop floor to use with electronics and other sensitive equipment. I frequently use a step down converter to use 5/32 bits with specialty types (no, I don't crank anything down with this, but I sure do break old fasteners free at full force!). The 20m work light is brilliant. Not that I don't already have an entire Division of purpose built lighting... This is just convenient when I don't want to drag another tool out for something quick or unforeseen. Battery consumption is very efficient due to the the phase solid state driven motors. I build these systems at the component level, I know them very well, you can't beat the efficiency and the power at such precision. This is a tank just like most of my DeWalt tools. I seriously doubt I'll be able to break it. You'd have to be a real a***hole to break one of these. I expect it to last indefinitely. I'm not 100% on how the hydraulic housing is configured, and if it will leak in 15 years or something, but I expect it was designed appropriately. Recommended, 10/10 ....and as a very picky engineer, I don't give anything full marks.
D**D
This impact driver is amazing. So much quieter then all others and has light impacts if needed. I have now bought 2 of these I love it so much. I use them daily. They are very well built like all dewalt tools are and so worth the money. I can't really say if the battery lasts any longer with these versus a standard impact driver.
E**A
Es muy veloz para ser hidráulico y el gatillo tiene muy buena sensibilidad. Si gustas un hidráulico sutil para tareas donde requieras controlar la potencia te recomiendo el milwaukee surge de 12v. Si lo que buscas es velocidad esta es la opción. Una vez que usas los atornilladores hidráulicos te enamoras de ellos.
Trustpilot
1 month ago
1 month ago