Century Drill Tool 97413 M8x1.25 Tap Letter H Drill Bit Set

Product Description

The CENTURY DRILL TOOL CO INC 97413 is a two-piece combo pack containing an M8 x 1.25 metric plug-style tap and a letter H drill bit. The tap features precision-cut threads accurately formed for consistent, repeatable thread profiles. Both the tap and drill bit are heat treated and tempered to file-hard hardness, extending service life under demanding hand-cutting conditions. This set is designed for hand-tapping operations where a matched tap-and-drill combination reduces setup time and ensures correct hole sizing before threading. The package quantity is 2 pieces and the set weighs 0.2 pounds.

This combo set is well suited for metalworking tasks in HVAC, plumbing, electrical, and general mechanical service where field technicians need to cut clean metric threads on the job. The M8 x 1.25 thread specification is a standard coarse-pitch metric size commonly encountered in equipment fastener repair and bracket fabrication. The letter H drill bit is the correct pilot size for this tap, making the combo a practical grab-and-go solution for field or shop use.

Key Features

• M8 x 1.25 plug-style tap for metric coarse-pitch hand threading
• Letter H drill bit matched to M8 x 1.25 tap for correct pilot hole sizing
• Precision-cut, accurately formed threads for consistent thread profiles
• Heat treated and tempered to file-hard hardness for extended tool life
• Designed for hand-cutting applications in field and shop environments
• Two-piece combo pack reduces setup time and sourcing effort

Compatibility

Designed as an OEM-style hand-tap combo for use in any application requiring M8 x 1.25 metric coarse-pitch threaded holes, suitable for general mechanical, HVAC, plumbing, and electrical trade work.

Installation Notes

Tapping operations should be performed by a qualified technician familiar with proper cutting fluid use and tap alignment techniques. Always drill the pilot hole to the correct depth before threading to avoid bottoming out the tap. Use appropriate cutting oil to reduce heat and extend tap life. Follow all applicable shop safety practices when operating drills and hand taps.