Century Drill Tool 95408 3/8-24 Nf Tap 21/64 Drill Bit Combo

Product Description

The CENTURY DRILL TOOL CO INC 95408 is a two-piece combo pack pairing a 3/8-24 national fine fractional tap with a 21/64 inch fractional drill bit. The tap features precision-cut threads that are accurately formed to deliver consistent, exact threading results on hand-cutting applications. Both the tap and bit are heat treated and tempered to achieve file-hard threads, extending useful service life under repeated use. This combo is suited for maintenance technicians, pipefitters, electricians, and general trade professionals who need matched tap-and-drill sizing in a single package.

This combo pack is intended for hand-cutting thread applications in metal and similar materials where a 3/8-24 national fine thread is required. The 21/64 inch drill bit is sized specifically to produce the correct pilot hole for the included tap, eliminating the need to separately source compatible tooling. Typical use cases include tapping holes in metal brackets, conduit fittings, fastener repairs, and similar field or shop tasks encountered across HVAC, electrical, and plumbing trades.

Key Features

• 3/8-24 national fine thread specification for precise thread cutting
• 21/64 inch fractional drill bit matched to the included tap size
• Heat treated and tempered construction for file-hard thread performance
• Precision-formed threads for consistent, exact results
• Designed for hand-cutting applications
• Two-piece combo pack keeps matched tooling together

Compatibility

Designed as an OEM-style replacement and general-use combo for hand-cutting applications requiring a 3/8-24 national fine tap paired with a 21/64 inch pilot drill bit.

Installation Notes

This tap and drill bit set is intended for hand-cutting use by trade professionals familiar with threading operations. Always secure the workpiece before drilling and tapping, and use an appropriate cutting fluid to reduce heat buildup and extend tool life. Do not use this tap in powered tapping equipment unless the tool is rated for machine use. Follow applicable shop safety procedures when working with cutting tools.