The DeWALT DCD790D2 is a Kompaktakkubohrschrauber and the successor to the DCD780C2. And truly a very good successor. In my case, the 790D2 will broaden my machinery and swap places after three years with my previous Makita DF330DWE.
A time yet comprehensive picture series is available in the gallery, including torque table.
Here are the key differences of the two first mentioned DeWALT models:
DCD780C2: Motor with carbon brushes, chuck plastic, 2x 1.5 Ah 18 Volt batteries, LED under the chuck, 350 Watt Output Power
DCD790D2: Brushless motor, Vollmetallschnellspannbohrfutter, 2x 2.0 Ah 18 Volt batteries, LED at the base of the machine, 360 Watt Output Power
The remaining technical data, weight, torque, rotational speeds in 1st and 2nd gear are congruent. But that's enough of? In my opinion, yes. Especially if you have a 10.8 volt cordless screwdriver but even if you know the problem of the energy / power loss in carbon brushes. More on that later.
The delivery can be found:
DeWALT cordless DCD790D2
two sliding battery with 18 volts and 2.0 Ah (charging time about 40 minutes)
Quick Charger for XR batteries from 10.8 volts to 18 volts
Belt clip (already assembled)
Magnetic bit (ready made)
Carrying case
Other components, such as a dual-PZ2, there is not.
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Quality / processing
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The DCD790D2 is very well made. Sharp edges, there is no, neither the housing nor the metal drill. The trigger (on / off) is working smoothly, thus ensuring the smooth start. When the switch is very Makita hakelig. The batteries are easy to push and without pressure with a click in the slot and just as easily removed again. The switch for the gears snapped loudly audible and directly. The same applies to the switch for clockwise and counterclockwise rotation, which is a bit quieter. The chuck holds cylindrical drills from 1,5 mm to 13 mm or 1/4 inch bits (6.35 mm) thanks to the metal ferrules absolutely fixed, the integrated ratchet does the rest. The chuck itself runs smoothly and does not wobble. The grids for the torque settings to drill are crisp but not too tight.
5 of 5 stars
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Design / Handling
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The soft handle is - as the name suggests - rubberized, extremely handy for smaller hands. (Note: my hands have the size 8 / M) Because the battery is placed under the engine (T-handle) and not in the handle stuck (pistol grip), not scores of DCD790 one more time when it comes to grip because of the handle is also thick. In addition, you can stand up or lie down, the machine either. The mentioned herein Makita is extremely top-heavy and can only be put down. The LED is finally where it had always intended to be, namely, at the foot of the machine. The infamous shadows of the drill chuck, there are no longer the 790er. The belt clip is fine if you / waistband hanging the machine to the belt. I myself do not do that, even though the 790 with about 1.5 kilograms with battery installed is not difficult. Overall, the cordless screwdriver is very well balanced and long work not überansträngt the wrist. The magnetic bit is awesome. I myself use it as a coil magnet and thus does not have to constantly engage in the screw pack.
5 of 5 stars
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Performance / endurance
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For a Kompaktbohrschrauber the performance offered is truly remarkable. I have the 790 ordered on a Tuesday, on Thursday the same week the machine was delivered and I have charged both batteries.
For six days I drilled the DCD790D2 in flow and located behind the wall, pierced metal with a thickness of 4 mm and graduated with a cone drill, hard (beech) and softwood (pine, poplar) with drill sizes from 3mm to out 10 mm or pre-drilled pilot holes and lowered. In addition, milled recesses with a 16mm flat mills and screws between 4x16 and 6x60 screwed - in dowels and directly into the wood. (Yes, it was once again time for rebuilding.)
Of course, not continuous, but about four hours per day. During working hours the engine has been barely noticeable warm, the handle or the battery not. I constantly have to switch between the torque settings and drill setting and also between courses. Finally, I checked the battery status after the end: One of three LEDs is extinguished. Honestly DeWALT: How do you do that?
For the same work I had to at least three times the 780C2 Battery; even five exchange / unloaded at Makita driver drill and must take breaks in between to cool the engine, together with handle and battery. This enormous stamina managed my Makita not even in his best days. Even the 780er would meanwhile have to make a break, at least to cool the engine. And the difference between the 1.3 Ah batteries when DF330, the 1.5 Ah batteries when DCD780 and 2.0 Ah batteries when DCD790 is really not great with 0.7 Ah and 0.5 Ah. Here, the brushless motor makes absolutely noticeable and definitely pays off.
5 of 5 stars
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Evaluation / Recommendation
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I have already worked with the previous model and was allowed to test this successor several times before they buy. Comparing the DCD790D2 wins against both brush motor models. The performance is okay, the handling is impeccable and DeWALT is generally for a very good quality of their tools and equipment. I paid about 260 euros for the DCD790D2. That's a steep price, no question. The amateur handyman who drilled only from time to time and screwed, the issue will certainly think twice. But in the long run it's a really gutangelegte investment. For the professional handyman this model is extremely interesting and certainly for a craftsman.
In addition, the extended warranty is for three years, when the machine will be registered within four weeks of purchase at DeWALT.
5 of 5 stars
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Yes, I can give such a high rating with a clear conscience because I have worked with the previous model and also consulted a Makita machine for comparison. The 790D2 is an upgrade for me. Correct, 10.8 volts, no 18 volt, 1.3 Ah / 1.5 Ah 2.0 Ah and are not a Bust engine is not a brushless motor. But primarily it is cordless for the areas drilling and screwdriving. Therefore, you can set up with different weight classes in this sense such a comparison also.
If questions remain unanswered - also for review, always write in the comments. Meanwhile, it should be known that I always read this and answer.
