Century Drill Tool 73307 Size 7 Spiral Flute Screw Extractor

Product Description

The CENTURY DRILL TOOL CO INC 73307 is a size 7 spiral flute screw extractor designed to remove broken bolts and screws still lodged in a fastening hole. It handles bolt and screw diameters from 7/8 inches to 1-1/8 inches and is also rated to remove 1/2-inch pipe. The spiral flute design bites aggressively into damaged fasteners, giving technicians and tradespeople a reliable grip without slipping. The required pilot drill bit size is 17/32 inches, and left-hand cobalt drill bits are the suggested pairing for best results. This tool is sold as a package of 2 extractors.

This extractor is used any time a fastener breaks flush or below the surface of a workpiece, leaving no accessible head for conventional removal. Common applications include mechanical and plumbing work where pipe fittings, bolts, or machine screws have sheared off during service or installation. The size 7 rating makes it appropriate for heavier fastener stock in the 7/8-inch to 1-1/8-inch range, which appears frequently in structural, pipe fitting, and heavy equipment contexts. Electricians, plumbers, HVAC technicians, and general tradespeople keep spiral flute extractors in their service kits for exactly these situations.

Key Features

• Removes broken bolts and screws from 7/8 inches to 1-1/8 inches in diameter
• Removes broken 1/2-inch pipe fittings
• Spiral flute design for aggressive, slip-resistant extraction
• Requires 17/32-inch pilot drill bit; left-hand cobalt bits recommended
• Sold as a package of 2 extractors

Compatibility

Designed for use on broken bolts and screws ranging from 7/8 inches to 1-1/8 inches and broken 1/2-inch pipe, when used with a 17/32-inch pilot hole.

Installation Notes

Drill a pilot hole using a 17/32-inch left-hand cobalt drill bit before inserting the extractor. Always cut power or shut off fluid supply to the system being serviced before attempting fastener removal. Apply steady, even torque to the extractor using the appropriate tap wrench or drill chuck set to reverse rotation. Do not apply excessive lateral force, as extractor breakage can complicate removal further.