TEKTON 2841 Everybit and Electronic Repair Screwdriver Bit Set, 135-Piece

Damn impressive set -- well worth buying!
TEKTON 2841 Everybit and Electronic Repair Screwdriver Bit Set, 135-Piece

This is an impressive kit, with just about every conceivable bit type (14 in all, not the 12 stated in the Amazon ad) - in a huge variety of bit sizes. Even if you have an extremely well-equipped shop as I do, odds are that it lacks many of these bit types. Bits lock into their respective places in the molded plastic case, with that bit's type and size clearly marked; so if one is missing from the case, you'll know which one it is. The bits themselves are S-2 steel (for you metallurgists) with a sandblasted finish, and seem to be as good as those in my Bosch bit set. I'll probably never use them all - but none has broken so far. Off-center holes in the centers of security bits would be an indicator of poor quality; but the holes in my Tekton security bits are well-centered.

The larger of the two included drivers is a ratchet type, but can be set to non-ratchet. Its end cap unscrews,...
Just got the new set!
I originally had the 105 piece set. This set blows that one away. The upgraded screw driver is micro drive. The little mini bit set has everything you would need, plus it comes with the pentalobe driver for the iphone 4 and up. Great warranty and customer service also, highly recommended.
Bit broke the first time I used it
These bits are very brittle! I bought the set largely to get the spanner bits. One tooth broke off the bit the first time I tried to tighted a security screw on a new emergency phone. These look very nice when you open the box, but the quality is poor.

Update 4/2/13: I emailed Brennan at their support site. The bits were replaced quickly and without questions asked. They do have good customer support. For this I have upgraded my rating from one star to three stars. Hopefully the replacement bits will not break.
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