Irwin Hanson 52404 Spiral Flute Screw Extractor Size 4

Product Description

The IRWIN HANSON 52404 is a Size 4 spiral flute screw extractor designed to remove broken or seized screws and fasteners from metal, wood, and composite materials. The spiral flute design bites into the damaged fastener as the tool is turned counterclockwise, increasing grip as extraction torque increases. This extractor is rated for screws in the 9/32 to 3/8 inch diameter range, as well as 1/8 inch NPT, 1/8 inch BSP, and M8 to M10 metric fasteners. It is a hand tool used by electricians, plumbers, HVAC technicians, and general maintenance professionals when fastener heads have stripped or broken flush with a surface.

This extractor fits a range of common fastener sizes encountered across residential and commercial service work, including pipe fittings and metric hardware. It is well-suited for use in tight spaces where a broken bolt or screw has halted progress on an installation or repair. Technicians typically pair this tool with a drill bit to first bore a pilot hole into the broken fastener before seating the extractor. The Size 4 designation makes it appropriate for mid-range fasteners found throughout HVAC equipment panels, plumbing fixtures, and electrical enclosures.

Key Features

• Spiral flute design increases grip with counterclockwise rotation for reliable extraction
• Compatible with screw diameters from 9/32 to 3/8 inch
• Fits 1/8 inch NPT and 1/8 inch BSP threaded fasteners
• Handles M8 to M10 metric fastener sizes
• Compact single-piece tool at 0.062 pounds for easy handling in confined areas

Compatibility

Designed for use with screws and bolts in the 9/32 to 3/8 inch range, including 1/8 inch NPT, 1/8 inch BSP, and M8 to M10 metric fasteners. Compatible with standard drill chucks and T-handle tap wrenches.

Installation Notes

A licensed technician or experienced tradesperson should use this extractor after drilling a pilot hole centered in the broken fastener using an appropriately sized left-hand or standard drill bit. Ensure the workpiece is secured and all power or pressure to the associated system is shut off before beginning fastener removal. Do not apply excessive side-loading force to the extractor, as brittle flute tools can fracture if leveraged laterally. Follow applicable safety standards for hand tool use in your trade.