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deuce4
Big Wall climber
the Southwest
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Topic Author's Original Post - Aug 9, 2007 - 08:58pm PT
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Ok, I'm looking into buying a power drill. The only rocks around here are blank and are actually good sport climbing material. I went out last week and placed a couple 1/2" bolts by hand for top anchors on a route, and my elbows ain't what they used to be...
So, I'm looking for recommendations on a good power drill. I probably will only need to drill (at most) 12 bolts at a time, and the rock is fairly hard sandtone and limestone. Plus it would be nice to have something lighter weight because of the highly strenuous approaches (read: "5 minute approach" in old folks speak).
I've seen mentions of the Hilti TE-6A and the old Bosch 11213R. Can you let me know what models are available, plus a rough idea of prices and where the best places are to get one?
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Mungeclimber
Trad climber
sorry, just posting out loud.
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Bosch Annihilator has been good, but I'm really wanting to mod it so the battery pack is not in my hand but on my ass.
if rapping in, it won't matter, then just most bolts per charge is good.
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nature
climber
Flagstaff, AZ
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Ebay is the place to look once you decide on the model.
The hilti is the way to go but might be overkill. Plus they are a lot more expensive.
If you find a used drill that has bettery packs that are on their way out DON'T buy new ones. Build a super-charge unit (others have different names for them). Two 7 amp hour hobby batteries in series ($15-$20) to build will get you 30+ holes per charge.
Munge Edit: build the super-charger! And remember, don't use extension cord as it's designed for 120V - thick speaker cord (designed for low resistence low volts is the way to go) is the way to go.
There's a thread around here somewhere on the whole super-charge unit that is most excellent.
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WBraun
climber
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John
If you need an external battery pack built. I'll build it for you.
We've got both Bosh and Hilti here at sar, and the Hilti has the external battery power pack built by me.
I use Gates Hawker batteries as they are the best and most robust.
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deuce4
Big Wall climber
the Southwest
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Topic Author's Reply - Aug 9, 2007 - 09:58pm PT
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Cool-
I just bought a used Bosch Annihilator SDS 11225VSR on Ebay without a battery pack for about $155. Seemed like a pretty good deal, hope it's not a scam.
Now looking for a battery!
Werner--the external battery system you talked about, let me know more.
Hmm, wot can I trade with you...?
cheers
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happiegrrrl
Trad climber
New York, NY
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One hour time lapse! From "I'm Looking" to "I just bought." That's gotta be a record....
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T Moses
Trad climber
Paso Robles
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Hehehe
John, welcome to the Dark Side .
Munge:
What you don't lead with tha powa drill? I do, with the battery still on it too. Heavy bastard tries to unbalance me though. Then again I don't climb very hard so it doesn't matter to much.
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deuce4
Big Wall climber
the Southwest
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Topic Author's Reply - Aug 9, 2007 - 10:21pm PT
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Cool, Werner.
I sent you an email, but can I have a couple of them babies sent over to ya for customization?
(I'll need your ship address).
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deuce4
Big Wall climber
the Southwest
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Topic Author's Reply - Aug 9, 2007 - 10:23pm PT
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I guess I'm a impact, er impulse buyer, Hippiegirl!
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WBraun
climber
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John it's ....
9000 Lost Arrow drive
Yosemite, Calif 95389
That's my FEDEX and UPS address
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nature
climber
Flagstaff, AZ
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Uh... I hate to disagree with the great Werner Braun but....
The bang for the buck is pretty steep on that job. I've had a lot of success with similar Amp hour batteries at a way fraction of the cost - like $8 each at Battieries Plus. I guess if money doesn't matter than I'm just blowing smoke....
I use a 7 amp hour ($15 each) battery for my power packs. 50 holes in hard sandstone with a bosch is typical.
Besides that... John, can you do silver soldering? It's pretty darn easy to set up the rig. Series VS parallel concept is about all it takes. And a bit of thinking on the types of terminals you'd like to use.
Should I shut up or?
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WBraun
climber
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No Nature you are correct.
You can get cheaper batteries if you want and they'll most likely work just fine. How much do yours weigh?
The Hawkers just have a much lower internal resistance than the cheaper ones therefore much better power transfer and are very very robust.
Whatever you want to spend is fine. John doesn't have to buy these as they are Cadillac batteries, the finest.
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nature
climber
Flagstaff, AZ
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Werner, the weight to Amp hour ratio is the same as the ones you show in that url. 1 amp hour ~= 1 lb weight. My 7 amp hours batteries weight 7 lbs. 2.5 as you show weigh 2.4 lbs.
As far as the internal resistence mumbo jumbo :-) - I have no comment as I have no clue about that stuff.
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WBraun
climber
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The Hawkers can take the abuse.
What most folks don't know about sealed lead acid batteries is that they will become damaged when their internal voltage drops below 10.8 volts.
Most cheap batteries will rapidly degrade if run down to this or below voltage level.
The Hawkers since they are designed for extreme use will come back alive far far below that. I've seen em come back full bore from around 1.3 vdc and still work years after.
Ordinary cheaper ones will be long gone dead birds.
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deuce4
Big Wall climber
the Southwest
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Topic Author's Reply - Aug 9, 2007 - 11:07pm PT
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Hi Werner--
I'm convinced. Should I buy anthing else from PPS, like a charger or power adapters or anything. If so, which of the bazillion choices of the charger should I get?
yeehaw.
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WBraun
climber
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I'll send you one of my custom chargers don't buy a charger.
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deuce4
Big Wall climber
the Southwest
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Topic Author's Reply - Aug 9, 2007 - 11:34pm PT
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Super cool Werner-
The batteries are on their way.
Keep me posted.
cheers
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deuce4
Big Wall climber
the Southwest
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Topic Author's Reply - Aug 9, 2007 - 11:54pm PT
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Here's a pic of the drill I bought. No grip thingie in the front--will that matter too much?
Looks like there's another model called the VSRH (this one is the VSR). The VSRH has a 3 amp battery, while the VSR has a 1.7 amp battery. Not sure if the motor is any different.
ps: Nature, thanks for the Ebay tip! Good timing, methinks.
And Mungemaster, thanks for the initial lead!!
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spongerbob
Gym climber
Cal
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Aug 10, 2007 - 12:00am PT
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Dude, that thing's proud!
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