16 Pieces Screwdriver Drill Bit Set, 100mm 1/4 Inch Hex Shank Long Magnetic Screwdriver Bits Power Tools Kit, Hex Head Allen Wrench, Torx Security, Cross Phillips and Flat Head Slotted Tip

Easy to get currossion without exposure to high humidity environment

The size is true. However, the tip is not that strong it rounded off by just using a hand torque.

I used two of the torx security screw to open my impact drill. At first screws are loosen but when i put them back i noticed that the bits are totally damage and not able to tighten the screws at all. It is complete waste of money.