Tap & Die Set, HSS-G, 3-12

• Use in workshop production, maintenance, and fabrication where the stated thread designation must be matched accurately.
• Select the tool by the thread system, size, and form stated in the product name before the job begins.
• Process: manual driving or assisted driving depending on your holder and machine setup
• Use: thread cutting, re tapping, and thread cleaning depending on condition
• Support service workshops, toolrooms, plant maintenance, and general mechanical engineering work.

Note Confirm thread designation, holder concept, and workpiece condition before you start the operation.

• Internal and external thread tools are kept together in one general purpose assortment.
• Metric range supports everyday workshop tasks without separate sourcing.
• Set organization simplifies storage and job preparation.
• Useful for maintenance, repair, and fabrication environments.

• General assortments are not optimized for every specialty material or production cycle time.
• It is a service assortment, not a dedicated high performance production package.

1. Select the needed size from the set according to the required internal or external thread.
2. Prepare the hole or workpiece outside diameter and secure the part against movement.
3. Mount the chosen tap or die in the correct holder from the set.
4. Start the threading operation square to the workpiece with steady manual control.
5. Use suitable lubricant and clear chips from the cutting zone as the operation progresses.
6. Check the thread, clean the tools, and store the set components back in their places.

• M 3 x 0.5 (VÖLKEL 27426)
• M 4 x 0.7 (VÖLKEL 27430)
• M 5 x 0.8 (VÖLKEL 27434)
• M 6 x 1.0 (VÖLKEL 27438)
• M 8 x 1.25 (VÖLKEL 27442)
• M 10 x 1.5 (VÖLKEL 27446)
• M 12 x 1.75 (VÖLKEL 27450)

• Product type: Tap and die set
• Tool material: HSS-G

How do you choose the correct product variant?

Match the thread designation, standard, and execution from the product name to the drawing or the existing mating thread before you start the job.

How do you decide whether the product fits your process?

Check whether you need manual handling, assisted driving, or a controlled machine process, and confirm that the product type in the name matches that use case.

What should you inspect before the threading operation?

Inspect hole or workpiece condition, alignment, lubrication plan, and holder suitability so the tool can work under controlled conditions.

Where can you read more about hand tapping?

Technical information hand taps as PDF

Can you use this product for repair work as well as new threads?

In many workshop situations, yes, provided the tool type, thread condition, and workpiece state support that use case.

Where can you find the full threading tools catalog?

VD 23 catalog as PDF

What is the main selection checkpoint after size matching?

After size matching, the main checkpoint is whether the tool form and process type suit the workpiece material and the intended hole or external thread condition.