Sata broken screw extractor set, 5 pieces, model ST09704ASJ

The Sata broken screw extractor set, 5 pieces, model ST09704ASJ is a compact toolkit for removing stripped, damaged or broken screws and bolts. Designed by Sata for workshop, automotive and general repair tasks, the set contains five extractors in graduated sizes that grip into damaged fasteners to enable controlled removal without further damaging surrounding material. The extractors are intended for use with hand tools or drill-driven adaptors as required for the task.

Advantages

This 5-piece set offers a range of sizes to cover common screw and bolt diameters, reducing the need to improvise when a fastener is rounded or broken. The extractors are made to bite into damaged heads or shafts for reliable engagement, helping to avoid enlarging the hole or harming adjacent surfaces. Being compact and easy to store, the set is suitable for portable tool kits and workshop drawers, allowing quick access during maintenance and repair work.

Suitable for

• Removing stripped or rounded screw heads
• Extracting broken bolts and studs
• Workshop and garage maintenance
• Automotive repairs where fasteners are corroded or damaged
• General DIY and appliance repair tasks

Key specifications

• Number of pieces: 5 extractors
• Material: hardened tool steel (typical for extractors)
• Finish: anti-corrosion coating or treated surface for durability
• Range of sizes: set includes multiple graduated diameters to fit small to medium fasteners
• Compatibility: suitable for use with manual extraction tools and drill adapters

How to use

Select an extractor size that best matches the damaged screw or bolt. If necessary, center-drill the fastener to create a pilot for the extractor. Insert the extractor into the pilot or onto the damaged head and apply steady counter-rotation using an appropriate driver, wrench, or a drill in reverse at low speed until the fastener is released. Apply penetrating lubricant and moderate heat where appropriate to ease removal of corroded or seized fasteners. Follow safe tool-handling practices and wear eye protection when drilling or applying force.

Usage recommendations

For best results, start with the smallest extractor that can bite into the damaged area and work up if engagement is insufficient; using progressive sizes helps preserve the surrounding material. Avoid excessive force that could enlarge the fastener hole, and use cutting fluids or penetrating oil on corroded threads before extraction.