ONE WAY SCREW REMOVER #16

Specialty insert bits extractor/installers fits screw dia.=37/64 One way screw remover or installer; ideal for removing rounded or damaged nuts and bolts. Loosen set screw to adjust tip depth; align and seat tip into screw head/bolt; slide collar flush with surface, tighten set screw then apply pressure while removing or installing one way screw or rounded bolt. 1/4 inches