Value Collection 312-8940 Spiral Flute Screw Extractor 9 Pc

Product Description

The VALUE COLLECTION 312-8940 is a 9-piece spiral flute screw extractor set designed to remove broken, stripped, or seized fasteners from metal, wood, and plastic workpieces. Spiral flute extractors work by biting into a damaged fastener as they are turned counterclockwise, converting rotational force into extraction force. This set covers screw sizes from 3/16 inches through 2-1/8 inches maximum capacity, making it a versatile solution for a wide range of broken-fastener jobs. The set includes extractors numbered 1 through 9 and weighs 3.5 pounds. Suitable for use with a standard tap wrench or locking pliers, these extractors are a standard item in HVAC, plumbing, electrical, and general mechanical service kits.

This extractor set is used in residential and commercial maintenance, repair, and installation work wherever fasteners have been damaged, rounded off, or broken flush with a surface. Typical applications include removing broken bolts from equipment housings, extracting stripped sheet-metal screws from ductwork or electrical panels, and recovering seized fasteners on pipe fittings and valve bodies. The broad size range accommodates pipe sizes from 1/8 inch through 1 inch nominal, covering the most common fastener diameters encountered in trade service work. Each extractor size corresponds to a specific screw diameter range, allowing the technician to select the correct size for a clean, controlled extraction.

Key Features

• 9-piece set includes extractors sized 1 through 9
• Compatible screw size range: 3/16 inches to 2-1/8 inches maximum capacity
• Spiral flute design bites into damaged fasteners under counterclockwise torque
• Covers pipe sizes 1/8, 1/4, 3/8, 1/2, 3/4, and 1 inch nominal
• Accommodates 16 compatible screw diameters across the set
• Suitable for use with standard tap wrenches or locking pliers

Compatibility

Compatible screw sizes include 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2, 17/32, 9/16, 19/32, 5/8, and 21/32 inches. Designed as a general-purpose replacement or addition to professional screw extractor sets used in HVAC, plumbing, electrical, and mechanical service applications.

Installation Notes

Screw extractors are installed by licensed or experienced trade professionals including HVAC technicians, plumbers, and electricians. Before extraction, power down all electrical equipment and relieve system pressure on any pressurized lines near the work area. Drill a pilot hole into the damaged fastener using a left-hand drill bit at the diameter specified for the selected extractor size before inserting the extractor. Apply steady, controlled counterclockwise torque — avoid excessive force that could break the extractor inside the fastener bore.