Shake And Break Impact Driver

I thought this tool looked pretty interesting. It wouldnt get used very much for 50 bucks but would be nice to have around

 

Often thought I could make one easy enough from the parts I have around. Put a half inch socket drive on it...

 

I would tend to agree. But impacting/vibrating the general assembly while applying torque might still have effect.

These tools are available with socket drive, but very expensive, IMHO.

 

Many is the time...

And here is my "extra spicy" version. Replacing rusted 120 year old 2-1/2" diameter fasteners, with rock hammer vibration.

 

Got one of those from the Snap On man on sale one time.

Worked well on the Phillips Screws on the windshield hinges on body. Only time I have used it.

Seemed to work well with the air hammer taking off those screws.

Dave

 

yes that is a nice tool I use the bench grinder quite often to do that. Still it would be usefull on studs and such that cant be taken to the bench

 

Exactly what i was thinking. It would be good for small bolts that often just snap off.

 

That is what we in the aviation maintenance profession call a "screw knocker". With a 3/8 drive to apex bit holder, they would break loose the hundreds of screws holding the lower leading edge panels on commercial aircraft wings for access for maintenance. and when you fracture the bit and it's stuck in the screw use the empty bit holder to hammer the screw a couple of times to knock the broken piece out.
We used a 4X rivet gun to hammer the screws loose and then an 3/8 drive impact to spin the screws out. Rivet guns have a softer "hammer action" than a air chisel.

 

I use one at work on a regular basis as a aircraft structural mechanic....also called an "old man" tool OR "knee knocker" as you mentioned. Sold by Brown Tool (aviation)
"Old Man" Screw Knocker/ Remover Size: 4" | Brown Aviation & Aircraft Tools

 

As a 31 yr career mechanic, we overhauled 757s in DFW, worked on C check aircraft, now as I type this I'm in a cushy engine shop job Here in ATL. After being told 14yrs ago that my paycheck was moving to ATL from DFW so I followed, some mechanics stayed in TX.