AWTools AW20259 HSS Threading Tap Set M8 x 1.25mm 3-Piece

The AWTools AW20259 HSS Threading Tap Set is a professional-grade tool kit designed for creating precise M8 x 1.25mm metric threads. Crafted from high-speed M2 steel with a hardness of 65 HRC, these taps provide exceptional durability and consistent cutting performance in various metalworking environments. The set includes three distinct taps—taper, plug, and bottoming—ensuring versatility for both creating new threads and restoring damaged ones in metal workpieces.

Advantages

The primary advantage of this set lies in its high-quality M2 high-speed steel construction, which maintains sharpness and structural integrity even under demanding conditions. By providing a three-piece progression, the set allows for a gradual and accurate thread formation, reducing the risk of tool breakage or thread misalignment. The inclusion of specialized tap types ensures that users can handle both through-holes and blind holes with ease, making it a highly reliable solution for workshop maintenance and precision engineering tasks.

Suitable for

• Cutting new metric threads in metal
• Repairing stripped or damaged internal threads
• Professional workshop maintenance
• DIY metalworking and mechanical projects
• Threading through-holes and blind holes

When it may not be suitable

This set is specifically designed for M8 x 1.25mm metric threads and will not be suitable for other thread sizes or pitches. It is intended for use on metal and may not perform optimally on extremely hard alloys or non-metallic materials like certain plastics or ceramics, where specialized tooling might be required.

Key specifications

• Thread size: M8 x 1.25mm
• Material: HSS M2 steel
• Hardness: 65 HRC (+/- 1)
• Standard: DIN 352
• Set composition: 1 taper tap, 1 plug tap, 1 bottoming tap
• Weight: 42 g

How to use

To use the AWTools threading set, first ensure the hole is drilled to the correct diameter for an M8 thread. Begin with the taper tap to establish the initial thread alignment, applying steady pressure and rotating clockwise. Follow with the plug tap to deepen the thread profile. Finally, use the bottoming tap if you need to extend the thread to the very bottom of a blind hole. Always use a suitable cutting oil to lubricate the process, which helps in chip removal and extends the life of the taps.

What to consider before purchase

• Verify the required thread size and pitch for your specific application
• Ensure you have a compatible tap wrench for manual operation
• Check that your workpiece material is compatible with HSS M2 steel
• Confirm the hole depth to determine if a bottoming tap is necessary

Usage recommendations: Always keep the taps clean and store them in the provided plastic case to prevent damage to the cutting edges. Regularly apply cutting fluid during the threading process to minimize friction and heat buildup.