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[golem]

never buy makita drill they transmission suck if you look the picture of both dewalt is the biggest winner all makita transmission broke after few use you will lose 3 speed and the 2 speed after few use.I got alot of expemple of broken gear 2 and 3 on makita.The best to show you how they makita suck is i was workin last year whit some who buy the makita kit whit drill and impact i was suprise the drill was not in the case so i ask im why he saay i was trying to put a small screw and boom drill transmission broken the drill  was dead.Other exple at school we got five makita drill 3 of them the 2 and 3 speed was brokken only the first speed work.so mconclusion makita drill durability worst on market.

[golem]

he was lucky to finish the the befor makita drill die

[TitoJamaica]

I would like to know which 18v drill from Dewalt is the most powerful. I ask because here in Jamaica, we got mainly concrete walls. Some are prefabricated and extremely tough. Or is the 36v much stronger than the 18v in terms of hammering. And can 20v batteries work in the 18v drills?

[DEWALTDUDE]

If you are drilling through concrete only, a hammerdrill would not be a recommendation. I would choose a dedicated Rotary Hammer. Dewalt Makes an 18v DC212KA Rotary Hammer. They also have a 20v Max version, 24v version, and a 36v version.

Currently the DC925 is Dewalt's most powerful 18v Drill/hammerdrill combo at 510 (480) UWO. The new 20v max will be the most powerful once it's launched, at 535 UWO.

[golem]

Hilti TE 7-ADimensions (LxWxH)  401 x 111 x 217 mm
 
Rated input  720 W 
Voltage  36 V  3.9-Ah
Weight according EPTA-Procedure 01/2003  4.9 kg 
Width  111 mm 
Depth Gauge  Yes 
Triaxial vibration value for hammer drilling into concrete (ah,HD)  11 m/s² 
Optimum drilling diameter in concrete  5 mm - 20 mm 
Battery Type  Li-Ion 
Single Impact Energy - setting I  2.6 J 
Triaxial vibration for chiseling in concrete  9 m/s² 
Hammering Speed Under Load - Setting I  4000 impacts/minute 
Maximum drilling diameter range for hammer drill bits - range  5 mm - 24 mm 
Chuck Style  TE-C 
Speed 1 No Load  740 rpm 
Drilling Modes  Hammer drilling Drilling Chiseling Chisel setting 
Reverse Switch  Yes 
Number of Gears  1

Dewalt


Voltage 36V 2.2Ah
Concrete Optimum 5/32 - 5/8"
Impact Energy 1.9ft-lbs
Vibration Measurement 8.5 m/s2
No Load Speed 0-1,150rpm
Beats/Min 0-4,400bpm
Chipping Yes
Vibration Control Yes
Tool Length 10.5"
Tool Weight 12.4lbs
 
Hilti more power 2.6 J Dewalt only 1.9 j
More Ah 3.9 hilti vs 2.2 dewalt
So more ah = More hole or time for Chisel.

[matigathin]

I love makita, It help my work more easily. 

[Bingobelle]

Golem:

First off the Hilti is over 1kilo ( about 2,2 punds ) heavier than the dewalt. Second, you can not compare J to ft-lbs imapct energy. I´m not saying that the Dewalt 36 v hammer is better than the Hilti since Hilti have a very strong name in concrete applications. But I do know that I´m very satisfied with my small 18 v DC213 dewalt at only 2,9 kilo. That machine is for most applications strong enough at only 2,9 kilo. To me that battery Hilti seems to big, after all we are talking about battery powered concrete rotary hammers and they are all regardless of brand somewhat limited when it is time for big holes or demanding chipping. When I´m going to do demanding concrete work I go to my worktruck and pick up the D25602 rotary hammmer with a cord.

And the most interesting thing, is the battery on the Hilti rotary hammer the same battery as on the 36 v hilti drill? I do not know, Just wondered but on the Dewalt I know you can swap the batterys between the rotary drill and the normal drill.

[golem]

Hilti dont have 36v drill driver only WSR 36-A 36 V Cordless Reciprocating Saw 36 v Cordless Circular Saw and 36v TE 6 and 7 rotary hammmer

[Aprelia]

Golem:. Second, you can not compare J to ft-lbs imapct energy.

Yes you can.

1.9 Ft-lbs is 2.58 Joules

So Hilti is 2.6 J, essentially they are the same. In terms of runtime, Hilti will absolutely slaughter DC212/213 and DC233.

If you need cordless for hammerdrilling 12mm or bigger holes, and don't own any 36v Dewalt tools, definitely buy Hilti.

For smaller than 12mm holes, any 18v SDS drill will do. If you use non-SDS drills, you will quickly wear out the hammer mechanism.

[Bingobelle]

Yes, of course you can compare J to ft-lbs. What I meant was that you can not just show the numbers in J and ft and compare. You have to transform one of them so you compare apple to apple like you did.

Not saying that the Hilti is a bad tool, only that it is much heavier than the dewalt, thats all. ( I know Hilti makes very good tools )

I have never had the opportunity to try out the cordless Hilti, but if the runtime is so much better than in the Dewalt, what kind of battery does Hilti use? Or is it just more cells and thats why the Hilti is heavier?

[kjones]

I don't know where Aprelia is getting his information, but I regularly embarrass the local Hilti reps doing head to head demo's with the 36v sds vs theirs.  Plus, their on board dust extraction unit is not remotely as good as the unit on the 36v dewalt (if you need dust extraction, if you don't use that feature, than it wouldn't matter). 

Aprelia, what test are you doing to get those results? (not questioning you, just more curious, because we see quite the opposite around here).  I have a number of very large companies that I have recently converted out of the Hilti hammers into our 36v because our runtime is significantly better, as well as our dust extraction unit is far superior. 

If you don't mind letting me know what you are doing to get those results, I would be curious to try it and possibly pass it back to the product team.

[Aprelia]

I don't know where Aprelia is getting his information, but I regularly embarrBum the local Hilti reps doing head to head demo's with the 36v sds vs theirs.  Plus, their on board dust extraction unit is not remotely as good as the unit on the 36v dewalt (if you need dust extraction, if you don't use that feature, than it wouldn't matter). 

Are you testing them with 3.0 Ah battery or 3.9? Try using this http://www.hilti.com/holcom/page/module/product/prca_productdetail.jsf?lang=en&nodeId=-9769&selProdOid=8785

1/2" bit, and see the results for yourself. No matter what you do, 2.3 Ah battery will lose to 3.9 Ah battery, even if they have higher mechanical energy transfer losses.

As for dust extraction, it's freaking impossible to find it in retail (at least here in Nova Scotia), and if you do find it, it's retarded expensive. It's cheaper for me to buy it on UK eBay and ship it here than buy it locally. It's good but it's totally not worth the money, I can buy alternate comercial solutions for fraction of the price.

I will try to ask hilti for a 3.9Ah hammer next week and post a video here.