Comments on: Automatic Adjustable Wrench: Power Tool meets Hand Tool http://www.coolest-gadgets.com/20081013/automatic-adjustable-wrench-power-tool-meets-hand-tool/ Playing with cool gadgets in the ongoing search for the Coolest Gadget Sun, 22 Nov 2009 02:54:37 -0500 http://wordpress.org/?v=abc hourly 1 By: Daniel http://www.coolest-gadgets.com/20081013/automatic-adjustable-wrench-power-tool-meets-hand-tool/comment-page-1/#comment-351831 Daniel Fri, 17 Oct 2008 21:11:39 +0000 http://www.coolest-gadgets.com/?p=17366#comment-351831 John Wrote: As a mechanical engineer, I would like to know how this applies 220 ft lbs of torque. The power portion opens and closes the jaws, in no way applying any torque to the fastener. Not being a mechanical engineer myself, although I do work for an engineering company, I am not sure the mechanics of transfer of torque. But I can tell you how it works. The motor in the wrench turns the little thumb screw. I am not sure if it is belt or gear driven within the wrench itself, I suppose I could take of the cover and look though. It is a pretty low power motor that if you put your finger on the side of the thumb screw it will not turn. However the torque on a normal adjustable crescent wrench is used to lock the thumb screw in place it looks like this works on the same principle to keep the motor from having any torque on it when turning a bolt. John Wrote: As a mechanical engineer, I would like to know how this applies 220 ft lbs of torque. The power portion opens and closes the jaws, in no way applying any torque to the fastener.

Not being a mechanical engineer myself, although I do work for an engineering company, I am not sure the mechanics of transfer of torque. But I can tell you how it works.

The motor in the wrench turns the little thumb screw. I am not sure if it is belt or gear driven within the wrench itself, I suppose I could take of the cover and look though. It is a pretty low power motor that if you put your finger on the side of the thumb screw it will not turn. However the torque on a normal adjustable crescent wrench is used to lock the thumb screw in place it looks like this works on the same principle to keep the motor from having any torque on it when turning a bolt.

]]> By: Wednesday’s Gadget Gallery » Coolest Gadgets http://www.coolest-gadgets.com/20081013/automatic-adjustable-wrench-power-tool-meets-hand-tool/comment-page-1/#comment-351639 Wednesday’s Gadget Gallery » Coolest Gadgets Wed, 15 Oct 2008 09:44:25 +0000 http://www.coolest-gadgets.com/?p=17366#comment-351639 [...] Automatic Adjustable Wrench: Power Tool meets Hand Tool [...] [...] Automatic Adjustable Wrench: Power Tool meets Hand Tool [...]

]]> By: Daniel http://www.coolest-gadgets.com/20081013/automatic-adjustable-wrench-power-tool-meets-hand-tool/comment-page-1/#comment-351529 Daniel Mon, 13 Oct 2008 21:41:10 +0000 http://www.coolest-gadgets.com/?p=17366#comment-351529 I was given one of these for Christmas last year and it is really handy in just the right application. It is a little bulky for things like working on a car or other tight spots, I prefer having a nice full set fixed wrenches. My siblings ran out the batteries the day I got it playing with it, but as long as you are only using it how it is supposed to be used the batteries last quite a while. And if they do run out you can still adjust it by hand. I was given one of these for Christmas last year and it is really handy in just the right application. It is a little bulky for things like working on a car or other tight spots, I prefer having a nice full set fixed wrenches.

My siblings ran out the batteries the day I got it playing with it, but as long as you are only using it how it is supposed to be used the batteries last quite a while. And if they do run out you can still adjust it by hand.

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