Century Drill Tool 73405 No. 5 Spiral Flute Screw Extractor

Product Description

The CENTURY DRILL TOOL CO INC 73405 is a No. 5 spiral flute screw extractor designed to remove broken bolts and screws that have snapped off inside a fastening hole. The extractor handles bolt and screw sizes from 3/8 inches to 5/8 inches and also removes 1/4-inch pipe. A 19/64-inch drill bit is required to prepare the pilot hole, and left-hand cobalt drill bits are recommended for best results. The aggressive spiral flute design bites into the damaged fastener as it turns, drawing it out cleanly without further damage to the surrounding material. This tool is sold in a package of four extractors.

This extractor is used across plumbing, mechanical, and general maintenance work wherever a fastener has broken flush or below the surface of a workpiece. Common applications include engine work, pipe repair, and structural fastener removal in both residential and light commercial settings. The 3/8-inch to 5/8-inch range covers a wide variety of standard bolt sizes encountered in trade work, making the 73405 a practical addition to any service technician's toolkit.

Key Features

• Spiral flute design aggressively engages broken fasteners for reliable extraction
• Removes bolts and screws sized 3/8 inches to 5/8 inches
• Removes 1/4-inch broken pipe sections
• Requires 19/64-inch pilot hole; compatible with left-hand cobalt drill bits
• Sold as a package of four extractors (No. 5 size)

Compatibility

Designed for use with broken or seized bolts and screws in the 3/8-inch to 5/8-inch range, and broken 1/4-inch pipe; requires a 19/64-inch left-hand cobalt drill bit for pilot hole preparation.

Installation Notes

Installation should be performed by a qualified mechanic, plumber, or maintenance technician familiar with fastener extraction procedures. Before beginning, de-energize or shut off any system connected to the fastener being removed. Drill the pilot hole to the specified 19/64-inch diameter using a left-hand cobalt bit, keeping the hole centered on the broken fastener. Insert the extractor and turn counter-clockwise with a tap wrench or locking pliers to engage and remove the broken piece.