DEWALT DCF899M2 Review – High Torque 1/2″ Impact Wrench

The DEWALT DCF889HM2 right here is the Godzilla of impact guns. Looking for a Dewalt gun that can change tires within minutes? This high torque impact tool packs 700lbs of put on torque and 1200lbs of breakaway torque.

You can use it loosen or tighten cutting edge 5/8-inch bolts on CATS. This amount of power is overkill for cars, but it does have three variable speed/power mode. It’s one of Dewalt’s strongest and newest cordless impact wrench.

This model has two variations

  1. Hog Ring
  2. Detent Anvil

If you don’t own any cordless tools from Dewalt, look for the model that comes with batteries and chargers.

Both of the variations are tough. The Hog Ring holds the socket using a split washer, and the best part of this is that you don’t need to use any tools to change the socket.

On the other hand, the Detent Anvil holds the sockets firmly, but you do need to use a tool to change the socket.

This model here can take on every rusty bolt and nuts you throw at it. For tightening, it has roughly 150, 400 and 900 max torque in the forward setting and for breaking bolts, it has 200, 440 and 1025 in the reverse setting.

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DEWALT 20V MAX XR Impact Wrench Kit, Brushless, High Torque, Detent Pin Anvil, 1/2-Inch (DCF889M2)
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DEWALT 20V MAX XR Impact Wrench Kit, Brushless, High Torque, Detent Pin Anvil, 1/2-Inch (DCF889M2)
  • 400 feet pounds of maximum torque to perform a wide range of heavy duty fastening applications
  • XR Li Ion batteries with fuel gauge provide 33 percent more capacity over standard packs
  • Variable speed trigger with electric brake provides user improved control
  • Anvil Type: Detent Pin. Impacts per minute is 0 2300

Features At A Glance 

  • Avg 400lbs-ft of max torque and 1200-ft-lbs of breakaway torque.
  • A powerful cordless tool with 20V MAX XR battery.
  • Three speed/power mode.
  • Brushless motor technology for superior performance.
  • LED lights.
  • Compact and ergonomic design.
  • It can handle a 6ft drop.
  • Available in detent pin and ½” anvil with the hog ring.

Now that you know what you are getting into let’s look at a more detailed perspective.

DEWALT DCF899M2 High Torque Impact Wrench Review

If you are dealing with really heavy-duty stuff, this one has got the power. What if you are working with smaller nuts? Well, you can lower the speed setting and don’t have to worry about stripping them off.

Out Of The Box

As far purchasing option goes, they do have different options to choose from. As you already know, this tool is a part of DeWalt’s 20V MAX lineup. If you already own a tool from this lineup, you can purchase this model as a bare tool only.

If you want to pick it up as a whole unit, one of the options they have is the impact gun, two 5-amp hour battery, dual voltage charger which can charge the 20 V max batteries as well as the 12 V max batteries. You’ll also get a protective tool bag.

First Impressions

The entire yellow portion of the tool is going to be very hard plastic and the black portion extending the entire way around the grip is going to be a softer rubber overmold.

It has rubber bumpers built-in on the side of the housing. The nose cone front is made out of metal. Unlike some other cordless impact wrenches, this does not have the option for a protective boot.

As far as the overall dimension go, you do need to keep in mind that any ½-inch cordless impact gun is not going to be a small tool.

From the back to the front, it’s coming in at 8-3/4-inches long, and from the top to the bottom to all the way to the high-capacity battery, it’s just over 10.5 inches. As far as weight is considered, it is coming in at 7.2 lbs.

Variable Trigger

The trigger is going to be variable. It runs just like a drill. If you want to make the motor run faster or slower, press the trigger accordingly.

How hard you press in on it, will apply more or less torque.

Right above the trigger section, there is a black selector switch that will move left to right. All the way in the right, it’s going to be rotating in reverse and all the way in the left, it will be in forward.

And, in the middle place is going to be a trigger lock to prevent you from accidentally pressing it on it.

Selector Switch

At the base of the grip, you will see a black selector switch. You slide left to right, and it’s going to click into place in front of 1, 2 or 3.

One is going to be a low torque or low speed. 2 will be the mid torque, and then three is going to be high torque. You can adjust this for forward or reverse. If you are dealing with very small of delicate fasteners, you do want to put that in speed or power mode one so that you don’t damage anything.

If you are dealing with a heavy-duty bolt, simply slide that over to max power which should be speed or power mode 3.

LED Lights  

The LED light is at the base of the grip just in front of the speed or power mode selector switch. This will light up every time you’re going to use the impact wrench.

It’s going to illuminate the place you’re working on. So, in a low light situation like on the side of the road or an unlit garage, that can really help you out lining up the socket to whatever fastening you’re dealing with.

Once you press on the trigger, it will light up. You don’t even need to turn the anvil. The LED is going to have a 20-second delay too.

Electric Brake

The motor does have an electric brake and unlike air powered impact wrenches or even some cheaper cordless impact guns that will continue turning when you let off the trigger.

The electric brake we’ll stop the anvil from turning, and it’s not going to spin the socket completely off or let’s say your fastener completely off when you’re working with something.

Is It The Right Tool For You?

As far as cordless impact wrenches go, this is going to be the most powerful one that I’ve reviewed up to this date. You can see that very plainly from the forward and reverse torque test.

Because it does have three different speed or power modes, you can really fine-tune that depending on what you’re working on and if you are dealing with smaller fasteners keeping that on speed or power mode one would probably be the way to go so you don’t accidentally damage anything.

Now if you’re dealing with larger bolts let’s say on a suspension popping that over to speed or power mode three is going to put a lot more torque through to the fastener.

Detent Anvil or Hog Ring?

If you choose the friction ring or the hog ring anvil, installing and removing sockets will be very easy. It doesn’t require any additional tools. The pin detent version looks the same, and this one will be best for construction trades. The only difference is that you need to physically press that pin in to install or remove a socket.

Final Thoughts

If you are working in a garage, the friction ring is definitely going to be the way that you want to go.

Now, I do want to point out because this is running off of Dewalt 20-volt max lineup, it can run using the high-capacity packs or even the compact packs the same way.

Hope you found what you needed to know in this Dewalt DCF899M2 Review. Don’t forget to bookmark this site for more awesome reviews like this one.

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