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[qadsan]

...Any chance you could borrow a new Bosch hammer drill and repeat the comparison w/ the other two?...

Have you seen this post yet?  It compares the Bosch hammer drill to a few others and there's video of the Bosh as well.  Here's the link...

http://thepowertoolforum.com/index.php/topic,23.0.html

[DEWALTDUDE]

it's actually the drill/driver model only.

[USMCDevildog73]

I know we are talking about the dcd950 here but I thought it would be good for me to mention that the dc925 also out performs the makita bhp454.  I own both the dc925 and the makita bhp454.  I like my Makita drill but would have to say that even the older dc925 performs better.  Especially when hammer drilling.  I was drilling some 1/2 inch holes to install some red heads and man the dc925 drilled them like a hot knife thru butter.  It was awesome to see how quickly it drilled.  The Makita on the other hand did well, but drilled the holes a lot slower.  I know the Makita is rated at 560lbs of torque, if either the dc925 or dcd950 were still using torque ratings, I think it would be safe to say that the Dewalts would be in the 600lb and above class.  Maybe around 630lbs of torque.  Don't get me wrong, I love Makitas stuff, but hands down the Dewalt drills are a cut above.

[DEWALTDUDE]

.....I like my Makita drill but would have to say that even the older dc925 performs better.  Especially when hammer drilling.  I was drilling some 1/2 inch holes to install some red heads and man the dc925 drilled them like a hot knife thru butter.  It was awesome to see how quickly it drilled.  The Makita on the other hand did well, but drilled the holes a lot slower.  I know the Makita is rated at 560lbs of torque, if either the dc925 or dcd950 were still using torque ratings, I think it would be safe to say that the Dewalts would be in the 600lb and above class.  Maybe around 630lbs of torque.  Don't get me wrong, I love Makitas stuff, but hands down the Dewalt drills are a cut above.

The difference in 3rd (no load max RPM's) gear between the Dewalt DC925 and the Makita BHP454, is 300 RPM's.(Makita 0-1700, Dewalt 0-2000) The difference in 3rd gear BPM is 11,500. (Makita 0-22,500, Dewalt 0-34,000) I've done many tests in hammerdrill mode between a handful of popular brand drills. The DC925 in hammerdill mode has outperformed all but one. That drill happened to be the new Hilti SFH 18-A CPC. It's actually a 21.6v drill. Why they chose to call it an 18v+ is a mystery to me??... Anywho, you may be surprised to know that the DC925 only has 500 in lbs of maximum torque. Torque is another topic all on it's own! Just remember that torque is only one side of the cube.

[USMCDevildog73]

WOW!!!  Thanks for letting me know about that.  Would the the dcd950 be about the same as the the dc925 in terms of torque?

[DEWALTDUDE]

Dewalt rated the DCD950 at 450 UWO. The DC925 is 480. I have not seen any torque specs out there for the DCD950. If Dewalt jumps on board with PTI , then you might start seeing public torque specs for Dewalt drills.

Application speed is going to be the same in 3rd gear. 3rd gear is really just for putting in fastners, so I don't see any torque related issues there. The DCD950's second gear has been turned down to 1,250 RPM's. Which means you can now complete tougher drilling tasks that you may have attempted only in 1st gear with the DC925. The DCD950's 1st gear was kicked up to 500 RPM's, so running 2 9/16" self feed bits are much faster. Even though the DCD950 has a lower UWO rating, I still feel like the DCD950 struggled less durning my testing than the DC925.

[USMCDevildog73]

anyway you can perform a test on how the dc925 stacks up against the bhp454on the same fir wood with the same bit?

[DEWALTDUDE]

I have no plans of doing any more tests against older products. People are really only interested in new products.

[USMCDevildog73]

do you have video on the dc925 vs dcd950?

[DEWALTDUDE]

I don't have a video, but if I get around to it, I'll make one.

[USMCDevildog73]

sweet

[MakitaFTW]

I just noticed this, but how come there are gouges in the Makitas armature?

[DEWALTDUDE]

Just a guess, but it could be for balancing?

[Bearcat]

 Real good review !

 That Dewalt DC950 looks like a nice piece of equipment.

 

.

[Bingobelle]

What is fastners? Is that screws to fix gipsy for example? Why I ask is because you say 3 gear is only for fastners.
However, I just bought a DCD920 ( in europe they call DCD 950 for DCD 925 and mine is the one without hammer mode, so thats why it is called DCD 920.) Do not know what the DCD 950 without hammer mode is called in the states.

Any way, I had to do some test So I took a "flatbore" by the name Irwin bluegrove 4x. Size 20 mm. In the 3 gear I coluld bore 83 holes through 5.5 centimeters wood.  Think you call it for 2" in the states. The extra 0.5 mm was because it was not "sanded" or what you call it. Rough surface still on it.

On the second gear I was able to bore 90 holes so the difference was only 7 holes. However, it was much nicer to bore in the higher speed in 3 gear and each hole was quicker done. So with "flatbore" I think 3 gear is very nice.

Have you tried the blue bore TSF? I´m thinking about to buy and test them. I´m working as a electrician and wenn working with installations in new build houses I do a lot of holes in 70 mm for outlets and light switches. The material is often one layer of gipsy and one layer of "plyboard or chipboard.

Up tp present day I´ve only used a special kind of hole saw only made to bore in wood and gypsy, not metal. It is much thinner compared to a holesaw that you can bore in metal with. How ever, I think traditional holesaw made for cutting in metal is very bad to cut in wood becasuse they get very warm.

But the new blue bore TSF seems very interesting. Very quick and also able to cut in a lot of different materials.

http://www.amazon.com/TSF12-Self-Feed-Hole-outperforms-self-feed/dp/B002JQ12GE

Or do you have some good tip for me what to use wenn making holes up to 80 mm in chipboard and plyboard?

I just saw that a DCD 920 is the 14.4 volt in the states and the DCD 940 is the 18 volt model. The ones without hammer mode. Strange that dewalt use DCD920 in europe for the 18 volt model and DCD 930 for the 14.4 volt model.