Century Drill Tool 98217 Hex Die 7/8-9 Nc 1-7/8 Inches

Product Description

The CENTURY DRILL TOOL CO INC 98217 is a hexagonal rethreading die designed for cutting and restoring 7/8-9 NC (National Coarse) threads. It measures 1-7/8 inches across and is built for routine maintenance and repair work where high precision tolerance is not the primary requirement. Machinists, maintenance technicians, and general tradespeople use this die to chase damaged or corroded external threads on bolts, rods, and fasteners without the need for a full precision threading setup. Its hex body allows a standard wrench or die stock to drive it quickly in the field.

This die is suited for general-purpose threading and rethreading tasks on 7/8-9 NC fasteners in maintenance, repair, and light fabrication applications. It is appropriate for use in industrial maintenance, construction, and facility repair settings where speed and convenience outweigh the need for high-accuracy thread tolerances. It is packaged in a quantity of 6 units per package, making it practical for shops that regularly perform rethreading operations.

Key Features

• 7/8-9 NC (National Coarse) thread specification for common fastener repair
• 1-7/8 inch hex body compatible with standard wrenches and die stocks
• Designed for rethreading and chasing where high accuracy tolerance is not critical
• Suitable for routine maintenance and repair work
• Packaged 6 units per package for shop convenience

Compatibility

Designed as a general-purpose rethreading die for external 7/8-9 NC threaded fasteners including bolts and threaded rod used in maintenance and repair applications.

Installation Notes

This die is installed and operated by machinists or maintenance technicians using a compatible die stock or wrench sized to a 1-7/8 inch hex. Always secure the workpiece before threading. Apply cutting oil to the die and workpiece to extend die life and improve thread quality. This tool is intended for rethreading and chasing operations, not for cutting precision-tolerance new threads.