Spiral screw extractors: Along with regular screw extractors, the kit also provides 6 spiral screw extractors. These extractors are characterized by their numbered sizes (NO. 1 to NO. 6) and are useful for removing stubborn or broken screws.
Left-hand drill bits: The kit features 16 left-hand drill bits in various sizes, ranging from 5/64" to 1/2" (imperial). These drill bits are designed to rotate counterclockwise and can be used in conjunction with the extractors to remove damaged bolts or screws.