Hand Tap Rougher DIN 2181 HSS-G - M 78 x 2.0

• Use it when you need to match the metric designation and pitch stated in the title.
• Use it for mechanical engineering and metal fabrication where you need a predictable thread start.
• Use it as the first stage in a staged hand tap sequence when you want a guided thread start.
• Process: manual driving or assisted driving depending on your holder and machine setup.
• Use: thread cutting, re tapping, and thread cleaning depending on condition.

Note Align the tool carefully and use lubrication suitable for your workpiece material to support surface quality and tool life.

• DIN 2181 reference supports standardised selection and documentation in production planning
• Useful when you want to reduce corrective rework by creating a clean initial thread path
• Suitable for routine threading tasks in maintenance and fabrication environments
• Supports a staged tapping sequence where the first pass establishes guidance for later tools

• May be restricted when the workpiece material promotes built up edge, depending on lubricant selection
• Not optimised for high performance automated lines where tool life tracking is tightly controlled

1. Confirm thread requirements on the drawing and verify that the pitch is correct for the part.
2. Clean the bore and remove chips or contamination that can skew alignment at entry.
3. Apply suitable lubrication to reduce friction and improve surface finish in the thread.
4. Clamp the tool in a stable wrench or holder and set up guidance if available.
5. Start with careful alignment and controlled torque so the first turns form cleanly.
6. Continue the cut with steady motion and remove chips from the cutting area when necessary. Technical information hand taps as PDF
7. Remove the tool, clean the work area, and check the thread with an appropriate inspection method.

• 1 piece: Hand Tap Rougher DIN 2181 HSS-G - M 78 x 2.0

• Standard: DIN 2181
• Material: HSS-G
• Tool type: Hand tap rougher
• Thread designation: M 78 x 2.0
• Thread system: Metric internal thread, as designated in the title
• Execution: Ground, depending on variant

Hand tapping is useful when you need tactile control or when access is limited. Machine tapping is typically chosen when you need consistent feed synchronisation and higher throughput.

Yes. The thread designation in the title includes both diameter and pitch, which helps you distinguish fine pitch variants from other executions of the same nominal diameter.

Use suitable lubrication and advance with controlled torque so chips can evacuate through the flute space. Clean the tool as needed to avoid chip packing and surface scoring.

DIN 2181 supports standardised identification for hand taps. It helps you align purchasing, documentation, and workshop instructions with a recognised designation.

Match the metric thread designation in your drawing to the product title, including the pitch value, because the pitch differentiates otherwise similar diameters.

Rougher refers to the first tap stage in a staged hand tapping sequence. You use it to establish the initial thread form and guidance before you use subsequent taps, depending on your set and process.

For additional information and the full range overview, use the catalog link. VD 23 catalog as PDF