What driver for 4mm Mitee-bite fixture screws?

Garwood

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New high density fixture has a lot of clamps with 4mm SHCS's.

Torque value is a couple ft/lbs.

What power tools are used to drive these in production shops?
 

Mud

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FWIW The clutch on a regular Dewalt drill adjusts on pretty small increments and will go down very low. That's what I use for such things, but have never done 4mm in large quantity. Lots of #10s though.
 

AARONT

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Inline air screw driver on a retractable coil for high volume. Lower volume a Dewalt cordless screwdriver.
 

DavidScott

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I like Uruyu drivers because of the ones I have used, not many, they by far have the highest quality "feeling" of how they work. They are extremely consistent with the torque from screw to screw and a high quality Japanese air tool that should last forever with a hint of care, so great to buy used. You do have to watch out for non-standard springs but other than that just get ones that look good and are not missing parts. I have around 15 of them from Lt-10 to Lt-50 so if I want a different torque setting I normally just have to grab the one set right vs having to change it. With standard springs I have a torque range of 1.77 - 49 lb-in. They are sold and serviced by Aimco Global in Portland with great online documentation and parts. For what I do I like a speed range of 800-1100 rpm, the faster ones are just too fast to loosen a screw a little.

If you go to their website towards the upper right there is a link to related documents for the user and repair manuals. These are the ones I like and they don't have any safety lever you have to depress to use them. The only thing I dislike about them, which I hate, is that you can lock them into reverse quite easily.


Here I am driving 8-32 screws in my version of Uniforce clamps with an 1100 rpm Lt-30 set to its lightest torque.

If you don't have any tools like these and do much driving or removing screws up to 1/4" then buy a few to try out, you will not regret it, I promise. If you use any wedge clamps then these things are gold because of how accurate and consistent they torque the screws down.
 

Garwood

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Thanks for the recommendation David! I grabbed an LT-30 for $50 to try out.
 

Garwood

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These things are slick!

Stupid simple to adjust and it couldn't get any faster or easier to use.

I just bought a couple more in the bigger LT50 size.

If you don't have one or a few of these you should buy some! They're awesome!
 
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