Hand Tap Rougher DIN 2181 HSS-G - M 70 x 1.5

• 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.
• Use it when you need to match the metric designation and pitch stated in the title.
• Use it for plant engineering assemblies where manual access is limited and alignment matters.

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

• Can support repeatable results when you keep lubrication, alignment, and chip evacuation consistent
• Ground HSS-G execution can help you maintain consistent cutting edges, depending on workpiece material
• Helps you control alignment at the start of the thread when combined with a suitable wrench and guidance
• The title based size and pitch marking simplifies variant selection across similar diameters

• May be limited in very abrasive or work hardening materials, depending on cutting conditions and tool execution
• 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 70 x 1.5

• Standard: DIN 2181
• Material: HSS-G
• Tool type: Hand tap rougher
• Thread designation: M 70 x 1.5
• Thread system: Metric internal thread, as designated in the title
• Execution: Ground, depending on variant

How do you handle chips during tapping?

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.

Does the title value M 70 x 1.5 include the pitch information you need?

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.

How do you select the correct variant for your drawing?

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

What does rougher mean for a hand tap?

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.

Can you use this hand tap for thread cleaning or repair work?

You can use it for controlled re tapping and for cleaning of existing threads when the thread form is intact, but the result depends on thread condition and how much material must be removed.

What should you watch for to avoid flank damage at the thread start?

Keep the tool aligned to the bore axis and apply steady torque. Use a suitable lubricant and avoid forcing the tap when resistance rises, because misalignment can mark the first thread turns.

Where can you find the VÖLKEL threading catalog for selection and technical background?

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