This is a 5-piece screw extractor kit designed to remove damaged, seized or broken screws and bolts where the head is stripped, rounded or fractured below the surface. The kit contains five tapered, left-hand spiral extractors with reduced hex shanks so the extractors bite into the remains of a fastener and can be turned out with a tap wrench, T‑handle or compatible drill/driver. The primary use is to recover fasteners without damaging surrounding components, avoiding drilling out threads or replacing large assemblies.

The extractors are manufactured from S2 tool steel with a black oxide finish for basic corrosion resistance and reduced glare during use. Each extractor is heat-treated to a hardness range of approximately HRC 56–62 to give the necessary toughness and edge retention. The shanks are shaped to standard hex profiles to fit DIN/ISO hex bit holders and common tap wrenches; the spiral thread is a left‑hand, tapered cut which engages the workpiece as the extractor is turned anticlockwise. The product is made in facilities operating to ISO 9001 quality management principles and conforms to standard hand-tool sizing conventions used across DIN, ISO and BS tooling systems.

Typical applications include workshop maintenance, automotive repair, plant and machinery servicing, electrical and plumbing work, joinery and general DIY where corroded or overtightened fasteners need removal. The tool is widely used in garages, service yards and industrial maintenance departments where access is limited and preserving surrounding material is important.

Key benefits are the hardened S2 construction for strength and durability, the tapered left‑hand spiral which reduces the need for excessive drilling, and the black oxide finish that provides a degree of corrosion protection and improved longevity in workshop environments. The reduced hex shank gives broad compatibility with standard tool holders and manual drivers, making the set versatile across different workflows.

Duchy Fasteners stocks this screw extractor kit in packs suitable for trade and DIY use, with individual sizes covering a practical range of fastener diameters. We supply single kits and multi-kit packs to suit workshops and maintenance teams.