What happens when the drill bit of the electric drill doesn't work?
Bit misalignment or abrasion.Regrinding the drill bit angle and replacing the drill bit when necessary.
The power of the torch is too small; the speed is too high; or the thickness of the plate is too large.Large power flashlight is selected according to the thickness of the workpiece; the thickness of the steel plate is too large, and the speed of the electric drill should be reduced.
The drill does not agree with the material of the steel plate (mainly the hardness of the steel plate).Choose the proper type of drill according to the material of the steel.