Century Drill Tool 95403 1/4-20 Tap Number 7 Bit Combo 2pc

Product Description

The CENTURY DRILL TOOL CO INC 95403 is a combination pack pairing a 1/4-20 national coarse fractional tap with a number 7 drill bit, sold as a 2-piece set. The tap features precision-cut threads that are accurately formed for consistent, repeatable threading results. Both tools are heat treated and tempered to achieve file-hard threads, which extends service life under regular hand-cutting use. This combo is designed specifically for hand-cutting applications where a matched drill-and-tap pair streamlines the workflow for threading fastener holes in metal, plastic, or similar materials. Plumbers, HVAC techs, electricians, and general maintenance tradespeople rely on matched tap-and-drill combos to reduce setup time on the job.

This set is suited for residential and light commercial maintenance applications where 1/4-20 national coarse threads are required. Common scenarios include tapping new holes for machine screws, repairing stripped threads, or adding threaded connections to sheet metal, enclosures, brackets, and mechanical assemblies. The number 7 drill bit is the correct clearance pairing for the 1/4-20 tap, eliminating the guesswork of sourcing the two tools separately. The 2-piece packaging means both are available together for field kits, service vans, and shop toolboxes.

Key Features

• 1/4-20 national coarse fractional tap paired with matching number 7 drill bit
• Precision-cut threads for consistent, accurate threading results
• Heat treated and tempered construction for file-hard thread cutting edges
• Designed for hand-cutting applications
• 2-piece combo pack reduces sourcing time for matched drill-and-tap sets

Compatibility

Designed as a standard 1/4-20 national coarse tap and number 7 drill bit combination for hand-tapping applications in metal and similar materials.

Installation Notes

Always secure the workpiece before tapping to prevent movement. Use appropriate cutting fluid when tapping metal to reduce heat and extend tool life. Turn the tap slowly and back off periodically to break chips and prevent binding. This set is intended for hand-cutting use only and is not rated for power-driven tapping.