Add some oil, Runhua for a while, it is easy to remove. Change the new screw
with a very small pointed nose pliers, living out to me pulled out ~
maintenance personnel with a large number of screwdriver three five in addition to get the two, he told me that the screwdriver should be used by the small model to the large model too, of course, I did not let you frequently change the screwdriver, but began to have too large Easy to spend, began to use a small easy to spend. Large screwdriver only after the screw has been spent on the stage.
after the drill with the drill cap will be destroyed. The use of the principle of anti-silk will be the remaining screw drilled (you can use a broken screw-specific drill bit - broken screw out of the device)
