This Irwin Hanson® 536/526 series 5-piece straight-flute screw extractor set is designed for softer materials or thin-walled pieces, such as pipes and fittings.
The design on these screw extractors eases extraction because it does not expand the material as it is removed.
Each Irwin screw extractor can remove both left-hand and right-hand threaded parts and has the size and recommended drill bit size etched onto it.