
The main cause of breakage is the lugs that hold the bits. The metal is thicker than I expected but this is where these guys fail. So if you're looking for something that can handle high torque, this isn't for you. Not just these, but all similar types of thin offset screwdrivers with this design. Also, you need good leverage when walking at an angle, so hopefully you'll have enough room to place your hand in that area while holding it. The best way I've found using it is to place the pen in the palm of your hand and use your middle and index fingers to guide the drill and press down. This will ensure the bit fits tightly into the screw groove/slots. The clips holding the bits are flimsy and look like they could rust, so keep them dry and don't use those guys to pry anything open. They are only intended as screwdrivers. The bits are special and look like they will be difficult to replace if lost or damaged. Plus, these tools are great.

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