GREEN RING Machine Tap DIN 376 Form C 39° Spiral Flute HSSE - M 22 x 2.5 | VÖLKEL GREEN RING Machine Tap DIN 376 Form C 39° Spiral Flute HSSE - M 22 x 2.5
GREEN RING Machine Tap DIN 376 Form C 39° Spiral Flute HSSE - M 22 x 2.5 supports controlled internal threading in workshop production when you need consistent thread quality across parts. The helix information in the title indicates a spiral angle of 39°.
Selection is driven by thread system, the required standard, and the flute concept for your hole type.
- Use for internal thread production in prepared holes in common engineering materials, within the limits of the tool grade.
- Prefer for blind holes where chip evacuation out of the hole is required by the flute direction.
- Use the ring marking in the title for fast identification when multiple tap types are stored together.
- 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 Select the thread system and nominal size from the product title to match the drawing and the mating part.
- Spiral flutes help transport chips out of blind holes and reduce the risk of chip packing.
- Suitable for mechanical engineering and maintenance work where repeatable fits are required.
- Ring marking supports quick selection in tool cabinets and reduces mix ups during changeover.
- Supports consistent internal thread quality when tool alignment and hole preparation are controlled.
- Tool material is HSSE as stated in the title which supports wear resistance in continuous use.
Drawbacks
- Not suitable for materials outside the hardness and toughness range intended for the tool grade.
- Requires clean hole preparation and stable guidance, so it is not ideal for high throughput rough setups.
- Confirm the thread system and nominal size in the product title against your drawing and mating part.
- Prepare the hole with the correct drilling operation and remove burrs from the entry.
- Select a suitable holder that keeps the tap aligned and provides controlled torque.
- Apply a cutting fluid appropriate for the workpiece material and the selected tap type.
- Start tapping with steady alignment and keep the axis straight to avoid flank damage.
- Advance with controlled feed and clear chips from the flutes as needed without forcing the tool.
- Stop at the required thread depth and withdraw the tap while maintaining alignment.
- Clean the thread and verify fit with the mating part or with a suitable gauge.
- Clean and protect the tool before storage to reduce corrosion and edge damage.
Scope of supply is defined by your order confirmation and delivery note.
- Product type: Machine tap
- Thread system: Metric
- Standard: DIN 376
- Chamfer form: Form C
- Flute type: Spiral flute
- Spiral angle: 39°
- Identification: GREEN ring marking
- Material: HSSE
- Tolerance class: ISO 2 / 6H
- Which hole type is this tap geometry aimed at
- Spiral flute geometry is commonly chosen for blind holes because it supports chip transport out of the hole. Use it when chip packing in the bottom of the hole would be a risk.
- Where can you find geometry and application background for machine taps
- Use the technical information for guidance on tap types, geometry terms, and general application limits. Technical information machine taps as PDF
- What does Form B or Form C indicate
- Form letters describe the lead and entry geometry that influences how the tool starts and how load builds up. Use the form stated in the title as a selection cue aligned with your thread depth and material behaviour.
- Which tolerance class do you normally target with standard taps
- Standard taps are commonly used for the usual fit class of the thread system. If your drawing calls for a special fit, select a dedicated tolerance execution rather than a general purpose tap.
- How do you use ring markings for tool management
- Ring markings support quick sorting of taps by geometry or application focus in storage and on the shop floor. Use the marking as an identification aid and still confirm the full designation before use.
- Where can you find the colour ring identification overview
- Use the coloured ring document for the meaning of ring markings across the range. Technical information coloured ring identification as PDF
- Can you use one tap for both production and rework
- You can use a suitable tap for controlled production and for careful rework when the thread is not severely damaged. For heavy rework, consider whether the base material and the thread profile still support clean cutting.
- Where can you find additional product information and selection tables
- Use the product catalog for overview, selection tables, and related tooling. VD 23 catalog as PDF
Do you need help selecting or using the product?
Use the contact form.
