Value Collection 312-8925 Spiral Flute Screw Extractor

Product Description

The VALUE COLLECTION 312-8925 is a Size 5 spiral flute screw extractor designed to remove broken, stripped, or seized screws from metal, wood, and composite materials. The spiral flute design bites into the damaged fastener as the tool is turned counterclockwise, drawing it out cleanly without damaging the surrounding bore. At 3.375 inches overall length, the 312-8925 fits standard drill chucks and works with a tap wrench or brace for controlled removal torque. It is sized for screws ranging from 3/8 inch to 5/8 inch in diameter, covering 10 mm to 16 mm metric equivalents as well as 1/4 inch NPT and 1/4 inch BSP threaded fittings. Machinists, mechanics, plumbers, and general maintenance technicians keep this size on hand for mid-range fastener extraction.

This extractor is suited for removing broken bolts, studs, and pipe plugs in plumbing, HVAC, and mechanical maintenance applications. It handles 1/4 inch NPT and 1/4 inch BSP pipe thread sizes, making it practical for removing seized pipe plugs in gas and fluid systems. The Size 5 designation covers a common mid-range fastener diameter encountered in residential and light commercial equipment service. It is sold individually and is compatible with standard drill press and hand-chuck setups.

Key Features

• Spiral flute geometry grips the fastener bore on counterclockwise rotation for positive extraction
• Covers screw diameters from 3/8 inch to 5/8 inch (10 mm to 16 mm)
• Compatible with 1/4 inch NPT and 1/4 inch BSP pipe thread applications
• 3.375 inches overall length fits standard drill chucks and tap wrenches
• Size 5 designation for straightforward kit selection and replacement
• Sold as a single unit with a minimum order quantity of 1

Compatibility

Designed for use on screws and fasteners from 3/8 inch to 5/8 inch in diameter, including 10 mm to 16 mm metric fasteners and 1/4 inch NPT and 1/4 inch BSP pipe plugs and fittings.

Installation Notes

A licensed mechanic, machinist, or maintenance technician typically handles broken fastener extraction. Before starting, cut power or shut off fluid supply to the equipment being serviced. Drill a pilot hole centered in the broken fastener using the recommended drill bit size for a Size 5 extractor before inserting the tool. Apply steady, controlled counterclockwise torque using a tap wrench or T-handle; avoid impact driving, which can snap the extractor in the bore.