Triplett TSBK-001 Security Bit Kit 32-Piece Kit with 30 Industrial-Grade Bits for Tamper Proof Fasteners

Excellent quality and presentation. I love it.

Bought this to use one of the bits to open Electronic Arts game cartridges for the Sega Genesis.

Great little kit without being too big. Fit's easily anywhere and has all of the security bits you should ever need. Great for tearing into electronics for repair that have the stupid post in the middle of the screw that prevents a regular bit from working.

This is the only set like this I found on Amazon.com which has 6 spanner bits. One I ordered before this showed 5 in the photo, but only had 4 when I received it. Rereading the product description for that set, it did say 4 even though there were 5 sizes in the photo so I just kept it. One review noted disappointment a spanner bit broke. Every mechanical device, including tools, have operating characteristics, capabilities, including for receiving the application of, and for applying torque forces. The smaller the spanner bit, the less force it can accept. Maybe less force would have been needed in that application, by properly using a penetrating oil, heat if some type of thread sealant was used, and so on. Sometimes the various forces, operating conditions are simply too much. A well know example of this is what happened to o-ring seals on a US Space Shuttle engine before. I find these bits to have worked when using reasonable force for the bit. In one need that I had two weeks ago, this was the only source of various sets and metric sized tools, for a quite small metric bit. I was very concerned the bit was going to break or strip or strip the bold head, before the bolt loosened (in an electronic assembly where is was risky to use a penetrating oil or apply heat). The bit took worked. Regarding quality, you can also buy on Amazon.com Chapman MFG bit sets. I've use those for years. If their bit sets have what you need, get those if you want good quality tools.

Just what I was looking for. Great assortment of different styles of security bits.

Un precio justo por bits poco comunes.

Llegó muy bien mi pedido excelente condiciones muchas

Good starter set for security bits (for what was sometimes called "obstruction screws"). Better quality than the budget Asian sets, so you pay a little more. If your fasteners are at the bottom of a deep recess (hole) then these may not work, and you will need to buy long bits or dedicated drivers. I don't have an I-phone, so I can't tell you if these are the tools needed to open an I-phone (or not). There are many types of Security Fasteners, and this set will only fit the most common ones. Seller shipped on time, and the item arrived in perfect condition.

Good quality

It has everything I need and is great quality.

Good assortment of security bits but bit t9h is flawer as it has no center hole. Great other than that

Good value and seem to be of decent quality had no problem get security bolts out with this set.

Nice little set and like the case.