AWTools AW20265 HSS Threading Tap Set M20 x 2.50mm 3-Piece

The AWTools AW20265 HSS Threading Tap Set is a professional-grade tool designed for creating precise M20 x 2.50mm metric threads. Crafted from high-speed steel (HSS) with a hardness of 65° HRC, this 3-piece set provides the durability and cutting efficiency required for demanding metalworking tasks. The set includes a taper tap, a plug tap, and a bottoming tap, ensuring versatility for various threading requirements in both workshop and industrial settings.

Advantages

The primary advantage of this set is its high-speed steel construction, which maintains a sharp cutting edge even under significant thermal stress. The inclusion of three distinct tap types allows for a progressive threading process, which reduces the torque required and minimizes the risk of tap breakage. By utilizing the taper, plug, and bottoming taps in sequence, users can achieve clean, accurate threads in both through and blind holes, ensuring high-quality results for every project.

Suitable for

• Cutting new metric threads in metal workpieces
• Repairing damaged or worn-out existing threads
• Threading through holes
• Threading blind holes, including those requiring threads close to the bottom

When it may not be suitable

This set is specifically designed for cutting right-hand metric threads and will not work for left-hand threading applications. It is intended for use on metal materials and may not provide optimal results on extremely hard alloys or non-metallic materials like certain plastics or woods, where different tool geometries might be required.

Key specifications

• Material: HSS M2 high-speed steel
• Hardness: 65° HRC (+/-1°)
• Thread type: Metric right-hand
• Thread size: M20 x 2.50mm
• Standard: DIN352
• Set composition: 1 taper tap, 1 plug tap, 1 bottoming tap
• Packaging: Plastic storage case

How to use

Begin by securing your workpiece firmly in a vice to prevent movement. Start the threading process with the taper tap, ensuring it is perfectly square to the surface of the hole. Apply a suitable cutting oil to lubricate the tap and the workpiece, which helps in chip evacuation and reduces friction. Rotate the tap slowly, backing it off periodically to break the chips. Once the taper tap has established the initial thread, follow up with the plug tap and finally the bottoming tap if you are working in a blind hole. Always ensure the tap is aligned correctly throughout the process to avoid cross-threading.

What to consider before purchase

• Verify that your project requires a right-hand M20 x 2.50mm thread
• Ensure you have a compatible tap wrench for the M20 size
• Check that your material is suitable for HSS cutting tools
• Confirm the depth of your hole to ensure the bottoming tap is necessary

Usage recommendations

Always use high-quality cutting oil during the threading process to extend the life of the taps and ensure a smooth thread finish. Clean the taps thoroughly after use and store them in the provided plastic case to prevent damage to the cutting edges.