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When a Phillips is not a Phillips!

Step 27Square Tamperproof

Square Tamperproof
Talking drive bits? Why not include this tamperproof one because there is also a Phillips version too. Basically the recess has a center pin, the drive must have the mating hole in the center end.

Theft Proof fasteners are virtually impossible to remove without the matching driver.
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1 comment
Sep 13, 2009. 1:21 PMmatthewjsmith says:
Aren't most fasteners impossible to remove without the matching driver?
Feb 8, 2010. 6:25 AMcatnip4all says:
You can remove all these fasteners with a Flathead screw driver. The hardest shown here is the "Chrysler" Uni-Screw. You need a file for this one. I learn to remove them when I grew up with nothing but a screw driver because we were immigrants with nothing...not because of wanting to break into places.

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