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DEWALT 20V MAX 1/4 Inch Hydraulic Impact Driver,Quiet, Brushless Cordless XR Extreme Runtime, LED Halo Ring, Tool Only (DCF870B)

Original price was: $199.00.Current price is: $173.99.

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📦 Arrives: Mar 21 - Mar 23
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Complete framing, cabinetry, and other applications in tight areas with the 20V MAX XR® Brushless Cordless 1/4 in. Featuring an advanced hydraulic mechanism, this impact driver delivers consistent performance for demanding applications in tough conditions. Battery & Charger Sold Separately **RMS sound pressure difference vs. DCF787 impact driver with 3” deck screw into PT 4×4 using DCBP034 (sold separately) *** vs DCF787 with 3″ x 3/8″ lag bolt into PT 4×4 using DCBP034 (sold separately) * vs. DCF787 impact driver †Based on rated max torque published by pro-grade power tool manufacturers for 12V and 18V cordless hydraulic impact drivers. ††3” x 3/8” lag bolt into PT 4×4 using DCBP034 (sold separately) vs. Milwaukee® 2760 using 48-11-1820. (Milwaukee® is a registered trademark of Milwaukee Electric Tool Corp., which has not endorsed or approved this comparison.)
Our quietest impact driver: Reduce noise disturbances with up to 57% quieter** operation
Up to 40% faster driving*** – drive large screws quickly and finish jobs fast
Advanced engineering – provides consistent performance in demanding applications and performs in cold temperatures
Designed for tight spaces – complete framing, cabinetry, and other applications in tight areas with an ergonomic design
Up to 6X brighter* – help illuminate work areas with 9 LEDs featuring a 20 minute work light mode
Part of our best performing line of 20V MAX* power tools innovative power tools designed to deliver certainty for the worlds toughest pros. Includes belt hook
Industry’s highest rated max torque hydraulic impact driver
Speed 1 and 2 are optimized to match the installation speeds
3 Year Limited Warranty

11 reviews for DEWALT 20V MAX 1/4 Inch Hydraulic Impact Driver,Quiet, Brushless Cordless XR Extreme Runtime, LED Halo Ring, Tool Only (DCF870B)

  1. deliah

    Excellent
    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.

  2. dr good wood

    A must have
    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.

  3. DeusEx

    Can you hear me now?
    Quiet and powerful. For those that are Delwalt users, this is driver to get. To be fair, here at the end of 2025, the DCF860 is still the king of the driver’s, but the DCF870 gets it done. I will take a little less power for the much lower volume when drivinf fasteners. I ran 2-1/2″ #9 deck screws in and had to watch that i wasn’t overdriving them. I stepped up to the 5-1/8″ and its dropped them like a rock.The grip is comfortable as most Dewalts are today. No Hotspots with barehands. It feels solid but I haven’t dropped it out of 2nd story window. The compact head will be great for working between studs.But the headline is how quiet it is. With predrilled holes i didnt even hear impacting until I got to the bigger fasteners. Granted this was all white pine. But when driving the aforementioned 5″ mini lags, it was quieter than my 12V driving 2″ #8’s. When i put up plywood sheeting in my garage, everyone for half a block knew it using my old 887. If I’d have had the 870, no one would’ve had a clue. Its unquestionably by favorite impact these days. Now Dewalt how bout a fluid impact in a lower power form factor for furniture, trim work, and the like.

  4. JP

    So much more quiet
    My coworker used his regular dewalt impact next to me the other day and holy cow that thing is loud. I’ve forgotten how loud my old one was. We service/install automatic and manual pedestrian doors. We are in all types of medical facilities about 75% the time and the patients and staff don’t want to be hearing that kinda noise. This dewalt hydraulic impact is SO MUCH more quiet and more powerful. No issues so far. I’ve had it now for about 6 months and use it at least 5 days a week the whole time at work.

  5. Bob C

    The best impact driver I have owned
    I have five other older dewalt impact drivers that I need to wear hearing protection when I use them. This one is far more powerful and super quiet in comparison. The best driver I have ever owned. A must have. I purchased a second one as soon as I used this driver for the first time. On the high power setting (2) you have to be careful or you will shear the head off the screw if you hold the power too long. Super happy with the upgraded unit. The older drives are going out to the street in front of my “Free” sign.

  6. Michael

    Huge power less noise
    Small enough to get in tight places a lot lower noise decimal being hydraulic with good power

  7. pedro Gonzalez Santiago

    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

  8. TAEKGYU KIM

    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.

  9. ryo

    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。

  10. Ernesto Zuazua

    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.

  11. Peter Csurkay

    DeWalt all the wayyy!! Plenty of torque, NO shaft wobble, drives 1″-3.5″ screws & lag bolts without issues Dont really notice it’s quietness since never had a normal 1/4″ impact Does the job great

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