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Old 01-17-2011, 12:06 AM   #16
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Impact Driver - Why?


Quote:
Originally Posted by tomstruble View Post
impacts drivers only provide impact to turn,they do not impact down like a hammer drill
Sure.

It's interesting though, that every description of an impact driver describes them as having a "downward hammering" movement as they turn. I suppose the argument would be whether it's a vertical hammering or horizontal hammering.

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Old 01-17-2011, 12:10 AM   #17
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Impact Driver - Why?


Quote:
Originally Posted by DrHicks View Post
Sure.

It's interesting though, that every description of an impact driver describes them as having a "downward hammering" movement as they turn. I suppose the argument would be whether it's a vertical hammering or horizontal hammering.
you can argue all you want but if you disassemble the hammering systems in each, as I have, you will realize that an impact driver imparts a rotational impact while a hammer drill or impact drill imparts a longitudinal impact.
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Old 01-17-2011, 12:14 AM   #18
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Impact Driver - Why?


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Originally Posted by nap View Post
you can argue all you want but if you disassemble the hammering systems in each, as I have, you will realize that an impact driver imparts a rotational impact while a hammer drill or impact drill imparts a longitudinal impact.
I'm not arguing, just noting what seems to be the common understanding (maybe misunderstanding).

Last edited by DrHicks; 01-17-2011 at 12:23 AM.
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Old 01-17-2011, 09:41 AM   #19
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Impact Driver - Why?


Wow - this has been a good discussion. I know I learned something and may be putting an impact driver on the list of tools to get. I'd be interested to hear from those that have them or have purchased them as a new tool what they think.

One other thing I have a question on is how do you control the torque on them? With my drill/drivers I use the clutch and it seems like none of the impact drivers have clutches...
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Old 01-17-2011, 12:09 PM   #20
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Impact Driver - Why?


I bought my Makita 18V Lion about 2 years ago at HD as a impact & drill combo. It has no torque control. I can only think of one time it would have been needed. My son is in the HVAC trade and has the next level up Makita geared towards pros. He said the Makitas are real popular at work which is why I bought that brand. The next level up one has more power and bigger batteries. I would see those features as essential if I was using it on the job all day. I use it all the time when working on the car. It does not replace my compressed air impacts, but it is great on smaller fastners.
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Old 01-17-2011, 02:13 PM   #21
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Impact Driver - Why?


No torque control.
I have driven screws all the way through, into the other board.
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Old 01-17-2011, 04:13 PM   #22
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Impact Driver - Why?


I have a little Hitachi 14.4 volt. It's a few years old and the batteries died. I have an 18 volt Hitachi drill as well. A slight modification and the 18 volt battery fits, and works, just fine in the impact driver.


You control torque with your finger. You want it to drive, you pull the trigger. You want it to stop, you let off. You want it to run slower, you throttle it. When you slow it, the impacts are not as hard so there is less torque applied.

It, and any other driver I have used (Bosch, Rigid, Milwaukee, Makita, and probably a few others) are very controllable with a trigger throttle.
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Old 01-17-2011, 07:40 PM   #23
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Impact Driver - Why?


Quote:
Originally Posted by Dr Hicks View Post
Sure.

It's interesting though, that every description of an impact driver describes them as having a "downward hammering" movement as they turn. I suppose the argument would be whether it's a vertical hammering or horizontal hammering.

i think the word percussion would more defining
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Old 01-17-2011, 07:44 PM   #24
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Impact Driver - Why?


you can over torque with an impact, some times a drill/driver is more precise,but honestly i rarely use the driver anymore
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Old 01-17-2011, 11:29 PM   #25
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Impact Driver - Why?


Impact drivers provide both downward AND rotational force....contrary to what some have posted herein. Impact WRENCHES provide rotational force only. This has been covered in recent threads....search and you will find. Or one real quick check of wikipedia should clear it up.
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Old 01-17-2011, 11:31 PM   #26
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Impact Driver - Why?


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Originally Posted by DrHicks View Post

It's interesting though, that every description of an impact driver describes them as having a "downward hammering" movement as they turn.
That's because that is what they do!
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Old 01-18-2011, 12:13 AM   #27
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Impact Driver - Why?


i believe your wrong

wikipedia... thats cute

Last edited by Tom Struble; 01-18-2011 at 12:20 AM.
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Old 01-18-2011, 03:22 AM   #28
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Impact Driver - Why?


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Originally Posted by piste View Post
Impact drivers provide both downward AND rotational force....contrary to what some have posted herein. Impact WRENCHES provide rotational force only. This has been covered in recent threads....search and you will find. Or one real quick check of wikipedia should clear it up.
I know for a fact mine does not provide downward force unless I am the force pushing it downward. I can go and check it, again, if you really don't believe me but I figure checking it, just because I read your post, is enough.
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Old 01-18-2011, 08:31 AM   #29
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I can throttle my makita with the trigger.
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Old 01-18-2011, 08:47 AM   #30
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Impact Driver - Why?


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i believe your wrong

wikipedia... thats cute
You are free to believe what you want however incorrect it may be...just stop spreading false information.

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