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I use the heck out of this screwdriver set!!! I do a lot of electrical work and really wanted a square head driver. But I didn't want to have yet one more screwdriver I had to carry around. This set was so affordable that I decided to get it and put my other screwdrivers back in the garage. I appreciate the electrical safe materials, love the double ended easily swappable driver tips, and the handle is very comfortable and has a really good grip. I've used them quite a bit since purchased as I am rewiring and replacing all the outlets and switches in an 1890 Victorian, and this house has a LOT of them. The smaller square head driver is showing a bit of damage and rounding from my letting it slip, but it is still seating and working just fine. The case is actually not too bad either! I figured I would hate the case and toss it, because most of the time the cases end up being junk, but this one fits the drivers well, rolls up nicely and the velcro sticks well. It is pretty much the only screwdriver set I use now. It's cheap enough to get an extra set to keep in your kitchen junk drawer or car.
Have not used yet, purchased as a "just in case". Have some concern about durability as the blades appear to have plastic hex shape that fit into a plastic hex hole in the handle. Case is a nice plus. I do not expect to give this heavy daily use so hopefully it will be OK when needed
This thing is crap. Never tested it to see if it was truly insulated, it's plastic rather than rubber, and the interchangeable bits have so much play in them I didn't even feel comfortable using this as a regular screwdriver.
If you actually NEED insulated screwdrivers please spend a bit more money and get a reputable brand like klein or knipex. Your safety is not worth saving $30
The screw tips snap into the handle and each can be reversed as needed exposing another size or style of tip. My only issue is the tips rattle in the handle giving you the sensation that you have to reposition the tip on the screw connecting.