Irwin 53705 Spiral Flute Screw Extractor Drill Set 2 Pc

Product Description

The IRWIN 53705 is a 2-piece spiral flute screw extractor and drill set designed to remove broken, stripped, or seized fasteners from threaded assemblies. The set includes one 19/64 inch drill bit for pilot hole boring and six spiral screw extractors sized 1 through 6, covering screw and bolt sizes from 3/8 to 5/8 inch and M10 to M16 metric. Spiral flute geometry bites into damaged fasteners as reverse torque is applied, pulling the fastener out without damaging the surrounding threads. Plumbers, HVAC technicians, and electricians keep this type of kit on the truck for field extractions during equipment service or rough-in repair work.

This extractor set is suited for residential and light commercial applications where 1/4 BSP, 1/4 NPT, and standard fractional or metric fasteners are commonly encountered. Typical use cases include removing sheared machine screws from valve bodies, stripped hex bolts from equipment panels, and broken studs from pipe fittings during service calls. The size range makes it a practical general-purpose extraction kit for multi-trade technicians working across HVAC, plumbing, and mechanical systems.

Key Features

• Spiral flute design applies increasing grip as reverse torque increases, reducing cam-out risk
• Covers 1/4 BSP and 1/4 NPT thread types as well as 3/8 to 5/8 inch fractional and M10 to M16 metric fasteners
• Includes one 19/64 inch drill bit sized to match the extractor set for proper pilot hole preparation
• Six extractor sizes (1 through 6) in a single kit for broad fastener coverage
• Compact 2-piece package suitable for tool bag or service van storage

Compatibility

Compatible with 1/4 BSP, 1/4 NPT, 3/8 to 5/8 inch fractional, and M10 to M16 metric fasteners. Designed as a general-purpose spiral flute extractor set for use with standard drill drivers and tap handles across plumbing, HVAC, and mechanical service applications.

Installation Notes

A licensed or journeyman-level technician should perform fastener extraction to avoid enlarging the pilot hole or snapping the extractor in the bore. Before extracting, power down or de-energize any equipment and relieve system pressure per applicable codes. Use a center punch to mark the fastener before drilling the pilot hole, and apply cutting fluid to extend drill bit life. Extractors are hardened steel and can fracture if side-loaded — always apply axial, straight-in torque during extraction.