Century Drill Tool 97512 8.0x1.00 Metric Tap Drill Bit Set

Product Description

The CENTURY DRILL TOOL CO INC 97512 is a two-piece combo pack containing an 8.0x1.00 metric plug-style tap and a letter drill bit size I. It is designed for hand cutting metric threads in metal and other materials where precise, consistent thread formation is required. The tap features precision-cut threads accurately formed for exact threading, and both tools are heat treated and tempered to file-hard hardness, extending useful service life. Machinists, plumbers, electricians, and HVAC technicians reach for combo packs like this when tapping threaded holes during equipment installation or repair work.

This combo pack is suited for hand tapping applications in workshop, field service, and maintenance environments. The 8.0x1.00 metric specification means the tap cuts an 8 mm diameter thread with a 1.00 mm pitch, a common thread size found in metric fastener applications across HVAC equipment, plumbing fixtures, and electrical enclosures. The included letter drill bit I serves as the recommended pilot drill to prepare the hole before tapping.

Key Features

• Plug-style metric tap in 8.0x1.00 for hand cutting applications
• Letter drill bit size I included for correct pilot hole sizing
• Precision-cut, accurately formed threads for consistent, exact threading
• Heat treated and tempered to file-hard hardness for extended tool life
• Two-piece combo pack sold as a single unit

Compatibility

Designed as a general-purpose metric tap and drill bit combo for hand tapping 8.0x1.00 metric threads in metal and compatible materials.

Installation Notes

Secure the workpiece firmly before drilling the pilot hole and tapping threads. Back the tap out periodically to clear chips and prevent binding or breakage. Apply appropriate cutting fluid to extend tool life and improve thread quality. Always wear eye protection when drilling and tapping.