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Old 06-24-2008, 04:31 PM   #1
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impact drivers


I know this will be a dumb question. I use my drill for everything and was wondering exactly what an impact driver is used for. Thanks

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Old 06-24-2008, 05:22 PM   #2
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impact drivers


Impact drivers excel at driving screws into wood.

Ever do that?? Then you'll like owning a impact driver

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Old 06-24-2008, 10:34 PM   #3
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impact drivers


If my 18V drill will drive a 3-1/2" screw, my impact driver will drive the same screw, and can countersink it 2" deep if I want. Big torque. But it also excels at tiny little hinge screws and such.
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Old 06-25-2008, 07:41 AM   #4
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My 18V impact driver will drive screws into things my 18V drill/driver wouldn't even dream of and I have a lot less trouble with "cam out" of the screw heads. If you are building with screws, an impact driver is worth every penny.
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Old 06-25-2008, 04:08 PM   #5
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impact drivers


my 18 Volt Dewalt impact driver stands above my 18 Volt Dewalt drill. As stated by Mat6 less head strip out.
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Old 06-29-2008, 11:04 AM   #6
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impact drivers


In addition to reasons stated above,
impact drivers are:
smaller (fit into tight spaces much better)
lighter (when wearing on a toolbelt for 9 hours, makes a big difference!)
easier to screw with (don't have to push the driver against the screw as hard as you do w/ a reg. drill)
loud as hell (wear ear plugs or ear phones and know that people won't be able to talk while you're screwing w/ it!)
seem to run longer on a single battery charge (although this is a gut feeling and not specifically field tested...)

They have a quick-change 1/4" chuck so you'll still need a reg. drill for smooth shank bits and a reg. drill still works better for drilling holes.

Don't confuse an impact wrench w/ an impact driver though...much different beast!

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Old 07-07-2008, 05:13 PM   #7
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impact drivers


Everything but drilling. And it will even do that.
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Old 07-09-2008, 09:00 PM   #8
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i have a $69 ryobi impact driver and it works awsome, it will drive 3 inch screws with no effort. Stuff that you couldn't do with regular dewalt, because youd strip it out. You'll break heads off screws before stripping them
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Old 07-13-2008, 07:57 AM   #9
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impact drivers


Quote:
exactly what an impact driver is used for.
An impact driver is much the same as the tool used in a garage for taking off wheels, etc. only uses drill driver bits instead of sockets. Lots more torque than a regular drill when driving in screws and bolts than a comparable drill. Think of doing mechanic work on a stuck bolt. Use a wrench on the bolt, hit the opposite end of the wrench with a hammer to give it a little extra oomph on the torque (turning force)- more than you can by trying to turn it by muscle only. Impact driver "hits" the driver bit several hundred times a second.

FYI - Compared to a hammer drill used for drilling in concrete, masony, etc. That compares to using a star drill bit and hitting it with a hammer to force it into the material while turning it.
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Old 07-13-2008, 09:15 AM   #10
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impact drivers


Doesn't it snap screws in half more often than regular methods of driving screws?
Do you wax or soap the screws first?
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Old 07-13-2008, 10:43 AM   #11
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[quote][Doesn't it snap screws in half more often than regular methods of driving screws?
/QUOTE]
Nope. Not if you're using the correct screws. Probably, if you are using drywall screws for framing.

[[QUOTEDo you wax or soap the screws first?]
Nope. That's the point of using an impact driver. You may want to pre-drill the holes to prevent splitting but that's a whole nuther story.
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Old 07-13-2008, 11:17 AM   #12
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What with driving nails at almost the speed of sound with an air compressor, and using this impact driver, I'm thinking the physics of these techniques is way different than hammering and using a regular drill-driver.

It must have to do with the response of the materials to high speed and high, short-duration force.

I don't do enough production fastening to justify buying this stuff, but, maybe, someday.

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