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Machine Tap DIN 5156 Form B HSSE - G (BSP) 1 x 11 | VÖLKEL

Machine Tap DIN 5156 Form B HSSE - G (BSP) 1 x 11

Use this machine tap to cut internal threads in pre-drilled holes for mechanical engineering, maintenance, and general fabrication work. The execution follows DIN 5156.

If you tap in series, keep cutting fluid consistent and monitor chip evacuation so the thread form stays within tolerance.

Application

  • Cut internal threads in pre-drilled holes using a controlled machine process.
  • Use a machine tap holder, collet system, or tapping attachment suited to the tap shank and drive.
  • 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 Use cutting fluid suited to the workpiece material and keep the tool clean and protected after use.

Benefits

  • Supports predictable lead-in when you align the tool to the hole axis
  • Helps you achieve repeatable internal thread form in workshop conditions
  • Enables controlled chip transport when cutting fluid and reversal are managed
  • Supports stable cutting edges for frequent use in service operations
  • Reduces risk of cross-threading when the tool is started square
Drawbacks
  • Limited suitability for very hard materials unless a dedicated execution is specified
  • Not suitable for uncontrolled hand tapping without a guided holder

Step by step

  1. Confirm the thread designation and ensure the workpiece hole is prepared and free of burrs.
  2. Secure the workpiece so the hole axis is stable during the tapping cycle.
  3. Mount the tap in a suitable machine tap holder and check that the tool runs true.
  4. Apply cutting fluid suited to the workpiece material.
  5. Align the tool to the hole axis before you start the tapping cycle.
  6. Run the tapping cycle with controlled feed and observe chip evacuation.
  7. Reverse out under control when the required thread depth is reached.
  8. Clean the thread and the tool, then protect the cutting edges for storage.

Scope of supply

Scope of supply is not specified in the provided product data for this item.

Technical features

  • Tool type: Machine tap
  • Standard: DIN 5156
  • Chamfer form: Form B
  • Tool material: HSSE
  • Thread system: G

Frequently asked questions (FAQ)

When should you use a machine tap instead of a hand tap
Use a machine tap when you can guide the tool with a machine spindle and a suitable tap holder, and when you want controlled feed that matches the thread pitch.
What holder type do you need for this tap
Use a machine tap holder, collet system, or tapping chuck that supports the tap shank and keeps alignment to the hole axis stable.
What preparation is required before you tap the thread
Prepare the core hole to the correct size for the thread designation, remove burrs, and add a small lead-in chamfer so the tap can start without side load.
How do you control chips and cutting fluid during tapping
Use cutting fluid suited to the workpiece material and clear chips regularly, especially in deeper holes or tougher materials, to prevent chip packing and tool overload.
Where can you find additional technical information for this execution
Use the following PDF for reference on inch threads and conversions: Inch to mm conversion table as PDF
How do you reduce risk of tap breakage
Keep alignment stable, avoid side load at entry, and stop if torque rises sharply so you can inspect hole preparation, lubrication, and chip evacuation.
Where can you find more product and application information in the VÖLKEL catalog
Use this catalog for additional details and related items: VD 23 catalog as PDF
How do you inspect the thread after tapping
Check that the thread is clean, that the start is not damaged, and that the functional fit matches the mating component used in your assembly.

Do you need help selecting or using the product?
Use the contact form.

Additional information
Type of thread Pipe thread
Standard DIN 5156
Form Form B
Material HSSE
Tolerance medium
Size G (BSP) 1" x 11
Overall length (L1) 160 mm
Thread length (L2) 30 mm
Core hole diameter (D1) 30.75 mm
Shank diameter (D2) 25.0 mm
Drive connector 20.0 mm
EAN 4022835785262
Item number 78526
Type of flute straight fluted
Application for through holes
Thread standard DIN ISO 228
Machine Tap DIN 5156 Form B HSSE - G (BSP) 1 x 11 | VÖLKEL

Machine Tap DIN 5156 Form B HSSE - G (BSP) 1 x 11

Use this machine tap to cut internal threads in pre-drilled holes for mechanical engineering, maintenance, and general fabrication work. The execution follows DIN 5156.

If you tap in series, keep cutting fluid consistent and monitor chip evacuation so the thread form stays within tolerance.

Application

  • Cut internal threads in pre-drilled holes using a controlled machine process.
  • Use a machine tap holder, collet system, or tapping attachment suited to the tap shank and drive.
  • 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 Use cutting fluid suited to the workpiece material and keep the tool clean and protected after use.

Benefits

  • Supports predictable lead-in when you align the tool to the hole axis
  • Helps you achieve repeatable internal thread form in workshop conditions
  • Enables controlled chip transport when cutting fluid and reversal are managed
  • Supports stable cutting edges for frequent use in service operations
  • Reduces risk of cross-threading when the tool is started square
Drawbacks
  • Limited suitability for very hard materials unless a dedicated execution is specified
  • Not suitable for uncontrolled hand tapping without a guided holder

Step by step

  1. Confirm the thread designation and ensure the workpiece hole is prepared and free of burrs.
  2. Secure the workpiece so the hole axis is stable during the tapping cycle.
  3. Mount the tap in a suitable machine tap holder and check that the tool runs true.
  4. Apply cutting fluid suited to the workpiece material.
  5. Align the tool to the hole axis before you start the tapping cycle.
  6. Run the tapping cycle with controlled feed and observe chip evacuation.
  7. Reverse out under control when the required thread depth is reached.
  8. Clean the thread and the tool, then protect the cutting edges for storage.

Scope of supply

Scope of supply is not specified in the provided product data for this item.

Technical features

  • Tool type: Machine tap
  • Standard: DIN 5156
  • Chamfer form: Form B
  • Tool material: HSSE
  • Thread system: G

Frequently asked questions (FAQ)

When should you use a machine tap instead of a hand tap
Use a machine tap when you can guide the tool with a machine spindle and a suitable tap holder, and when you want controlled feed that matches the thread pitch.
What holder type do you need for this tap
Use a machine tap holder, collet system, or tapping chuck that supports the tap shank and keeps alignment to the hole axis stable.
What preparation is required before you tap the thread
Prepare the core hole to the correct size for the thread designation, remove burrs, and add a small lead-in chamfer so the tap can start without side load.
How do you control chips and cutting fluid during tapping
Use cutting fluid suited to the workpiece material and clear chips regularly, especially in deeper holes or tougher materials, to prevent chip packing and tool overload.
Where can you find additional technical information for this execution
Use the following PDF for reference on inch threads and conversions: Inch to mm conversion table as PDF
How do you reduce risk of tap breakage
Keep alignment stable, avoid side load at entry, and stop if torque rises sharply so you can inspect hole preparation, lubrication, and chip evacuation.
Where can you find more product and application information in the VÖLKEL catalog
Use this catalog for additional details and related items: VD 23 catalog as PDF
How do you inspect the thread after tapping
Check that the thread is clean, that the start is not damaged, and that the functional fit matches the mating component used in your assembly.

Do you need help selecting or using the product?
Use the contact form.

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