Sealey-AK751-Bolt-Stud-and-Screw-Extractor-Set-18-Piece-Sealey-AK751-p-Comprehensive-set-including-Chrome-Molybdenum-screw-and-bolt-extractors-and-Vanadium-stud-extractors-Screw-type-has-left-hand-threads-for-removing-recessed-bolts-studs-Bolt-type-features-reverse-spiral-flutes-which-bite-down-on-rounded-off-bolts-Stud-type-includes-three-internal-rollers-clamping-down-and-gripping-stud-allowing-removal-installation-Suitable-for-professional-workshop-Supplied-in-storage-case-p-Sea