Irwin Industrial Tool Co 8334 Metric Tap 8mm X 1.25

Product Description

The IRWIN INDUSTRIAL TOOL CO 8334 is an 8mm x 1.25 metric hand tap manufactured from carbon steel. It is designed for cutting internal threads by hand in a wide range of materials, producing a Class 2B thread fit. The straight flutes are ground to enable rapid chip removal, which keeps the tap cutting efficiently through the full depth of the hole. This tap is intended for routine maintenance and repair work where high-precision tolerance threads are not required, making it a practical choice for rethreading damaged fastener holes in the field or shop. A 17/64 inch drill bit is the recommended tap drill size for this thread.

This tap is suited for use in general maintenance, repair, and light fabrication environments. Electricians, plumbers, HVAC technicians, and general tradespeople reach for this size when restoring stripped metric threads in equipment housings, brackets, and mechanical assemblies. It is ground for hand threading work and performs across a variety of workpiece materials. The Class 2B thread designation reflects a standard tolerance fit appropriate for most bolted connections where thread accuracy is functional but not critical.

Key Features

• 8mm x 1.25 metric thread form cuts Class 2B internal threads
• Carbon steel construction provides adequate hardness for hand tapping common materials
• Straight flutes ground for rapid chip removal and efficient threading action
• Optimized for maintenance and repair rethreading applications
• Recommended tap drill size: 17/64 inches
• Package quantity of 12 units per package

Compatibility

Designed as a hand tap for cutting or restoring 8mm x 1.25 metric internal threads in a variety of materials suitable for Class 2B thread tolerance applications.

Installation Notes

This tap is intended for hand threading use with a standard tap wrench. Secure the workpiece before tapping, and use cutting fluid appropriate for the workpiece material to extend tap life and improve thread quality. Apply steady, even pressure and back off the tap periodically to break chips. Do not force the tap if resistance increases sharply, as carbon steel taps are more susceptible to breakage under torque overload than high-speed steel alternatives.