Aptel Eventus by Exact CNC Tap Metric M2 x 0.4 mm Right Hand Cutting DIN 371 HSS-E Shape B

The Aptel Eventus by Exact CNC Tap Metric M2 x 0.4 mm Right Hand Cutting DIN 371 HSS-E Shape B is a precision threading tool engineered for professional machining and workshop applications. Designed to create accurate internal metric threads, this tool combines high-quality cobalt steel construction with standardized geometry to ensure reliable performance during metalworking tasks.

Advantages

Manufactured from high-speed cobalt steel, this metric tap offers enhanced durability, wear resistance, and thermal stability compared to standard high-speed steel tools. The inclusion of cobalt extends tool life significantly, especially when working with demanding materials. Adhering to the DIN 371 standard ensures precise shank and square dimensions for secure tool holding in CNC machines and tapping attachments. The Shape B lead features a modified point with a 4 to 5-thread chamfer and chip flutes, which effectively pushes chips forward in through-holes, resulting in clean and precise thread formation.

Suitable for

• CNC machining centers and automated production lines
• Conventional milling and drilling machines with tapping capabilities
• Professional metalworking workshops and industrial manufacturing
• Creating M2 metric threads with a 0.4 mm pitch in through-holes

When it may not be suitable

This tool is not recommended for blind holes due to the Shape B lead design, which pushes chips forward rather than collecting them in flutes. Additionally, it is not suitable for manual tapping applications where precision machine alignment cannot be maintained, as the small M2 size is delicate and prone to breakage under uneven manual force.

Key specifications

• Thread type: Metric ISO thread
• Thread size: M2
• Pitch: 0.4 mm
• Cutting direction: Right-hand
• Material: High-speed cobalt steel (HSS-E)
• Standard: DIN 371
• Lead type: Shape B

How to use

Ensure the workpiece is securely clamped and properly aligned with the spindle before operation. Drill a pilot hole of the correct diameter specifically recommended for M2 threads with a 0.4 mm pitch. Use a suitable cutting fluid or tapping oil to reduce friction, dissipate heat, and improve thread quality. Feed the tap steadily into the hole, maintaining proper synchronization between the machine feed and spindle speed to avoid damaging the delicate M2 threads.

What to consider before purchase

• Verify that the application involves through-holes rather than blind holes to match the Shape B design.
• Confirm the correct pilot hole diameter for an M2 x 0.4 mm thread.
• Ensure the machine tool or tapping attachment is compatible with DIN 371 shank dimensions.
• Assess the material hardness to ensure compatibility with HSS-E cobalt steel tools.

Usage recommendations

Always use adequate lubrication during the tapping process, maintain correct spindle speeds, and regularly clear chips from the work area to maximize tool longevity and thread precision.