The best way to remove a broken screw depends on how much shank remains exposed and what material surrounds it. If part of the screw protrudes, try gripping it; if it is flush, create a centered starting point and use an extractor or controlled drilling method. Before drilling, protect the surface and confirm there is no wiring, plumbing, or equipment behind it.
If it protrudes, start with locking pliers
Clear around the shank, grip it as close to the surface as possible, and turn slowly in the loosening direction. Penetrating lubricant can help in compatible metal assemblies; give it time rather than jerking and breaking the screw shorter.
When flush, center the work before drilling
Mark the center with an appropriate tool so the bit does not wander across wood, metal, or tile. Start with a small diameter and controlled speed. Eye protection matters because hardened bits and fragments can chip or break.
An extractor needs a straight, correctly sized hole
Follow the extractor kit’s size chart and turn with steady pressure. If the extractor starts twisting or slipping, stop; breaking hardened tool steel inside the screw makes the repair much harder.
Sometimes it is better to sacrifice the screw and repair the hole
In wood, it can be cleaner to core around the broken screw, remove it, and glue in a plug before refastening. On critical hardware, automotive parts, gas, or electrical equipment, avoid improvisation; professional extraction can preserve threads and safety.