The most common use of left-handed bits is the removal of broken bolts, studs, and pipe. Right-handed fasteners are usually loosened by turning to the left. Therefore, the torque applied by a left-handed drill bit helps loosen the broken screw
The most common use of left-handed bits is the removal of broken bolts, studs, and pipe. Right-handed fasteners are usually loosened by turning to the left. Therefore, the torque applied by a left-handed drill bit helps loosen the broken screw