Screw Extractor Set Apte NZ8A — 4 pieces, for broken and seized screws

The Apte NZ8A screw extractor set is a four-piece tool kit designed to remove broken, rounded or seized screws and bolts. Each extractor has a tapered spiral design that grips damaged fasteners when turned counterclockwise after an appropriate pilot hole is drilled. The set covers a range of sizes to address small to medium fasteners and is intended for maintenance, repair and restoration tasks in metal, wood and plastic components used by both professionals and DIY users.

Advantages

The set provides progressive extractor sizes allowing selection of the best fit for the damaged screw, reducing the risk of further damaging the workpiece. Hardened steel construction ensures durability and reliable grip on corroded or rounded fastener heads. The spiral flute geometry promotes a firm bite as torque is applied, improving the chance of successful removal without excessive force. The compact four-piece format is convenient to store and carry in a tool kit.

Suitable for

• Removing broken or sheared screws and bolts in metalwork
• Extracting rounded or stripped fasteners from wooden components
• Repairing seized screws in plastic housings and assemblies
• Maintenance and restoration tasks in workshops, garages and on-site repairs

Key specifications

• Set composition: 4 tapered spiral extractors covering small to medium fastener sizes
• Material: hardened tool steel for increased wear resistance
• Design: left-hand spiral flutes for counterclockwise extraction
• Application materials: suitable for use in metal, wood and plastic
• Storage: compact set for easy inclusion in general tool kits

How to use

Select the extractor whose taper matches the damaged fastener. Drill a centered pilot hole into the broken screw using an appropriate drill bit size. Insert the extractor into the pilot hole and apply steady counterclockwise torque using a tap wrench, adjustable wrench or suitable socket adapter. Gradually increase torque until the extractor bites and the fastener begins to turn out. If necessary, apply penetrating lubricant beforehand and work carefully to avoid expanding the hole or damaging surrounding material.

Usage recommendations

Use proper eye protection and clamp the workpiece securely before drilling. Start with a smaller pilot hole to maintain centring and avoid excessive material removal. For corroded or seized fasteners, apply penetrating oil and allow time to penetrate before attempting extraction. If resistance remains high, alternate small increments of torque rather than applying sudden force to reduce the risk of extractor breakage.