#5 SQ Screw Extractor

#5 square flute screw extractor. Removes bolt or screw size 5/8". Removes pipe 3/8". Use drill size 3/8", left hand cobalt drill bit suggested. Screw extractors are used when a screw or bolt has broken off while still in the fastening hole. Ideal for thin wall extractions. Will not spread the wall as it extracts.