HexTap Type DS - Double ended tap, Multi-Drive Form C HSS-G - G (BSP) 1.1/2 x 11 | VÖLKEL
HexTap Type DS - Double ended tap, Multi-Drive Form C HSS-G - G (BSP) 1.1/2 x 11
You use this threading bit to cut internal threads with a hex drive setup, which is practical for assembly, service, and field work.
For repeatable results, align the tool to the hole axis, use a suitable cutting fluid, and keep chips cleared from the cutting area. NPT and BSP designations describe pipe threads, where thread form and sealing concept depend on the specific standard in the product name. HSS-G indicates a ground high speed steel tool, typically selected when edge definition and repeatability matter.
- Cut internal threads in components used in mechanical engineering and plant service.
- Practical for assembly and service work where you use a compact hex drive interface.
- 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 stable workholding, because movement during the start often causes oversize threads.
Note Use cutting fluid suitable for the work material and keep the tool aligned during the first turns.
- Compact drive concept for access restricted tapping points
- Easy integration with reversible drills and bit holders
- Supports quick tool changes in assembly and service work
- Practical for on site thread maintenance tasks
- Suitable for routine use in metal fabrication and plant engineering service
Drawbacks
- Sensitive to misalignment, especially during the first turns
- Practical speed is limited by manual handling and by access conditions at the workpiece
- Prepare the hole and remove burrs so the tool starts straight.
- Clamp the workpiece securely and align the tool to the hole axis.
- Use a suitable holder or drive and apply cutting fluid for the work material.
- Start the thread with controlled feed and keep the tool guided through the first turns.
- Continue with steady torque and clear chips from the cutting area as needed.
- Reverse to remove the tool, then clean the thread and the tool flutes.
- Check the thread with the intended fastener or a suitable gauge and protect the part.
- 1 piece HexTap Type DS - Double ended tap, Multi-Drive Form C HSS-G - G (BSP) 1.1/2 x 11
- Product type: Threading Bit
- Standard: BS
- Thread designation: BSP
- Chamfer form: Form C
- Tool material: HSS-G
- How do you select the correct thread designation for this product
- Match the thread designation in the product name to the mating fastener or component standard, then confirm that your workpiece material and process setup suit the tool type. If you work with mixed standards, separate your tooling by thread family to avoid mix ups.
- What drive tools can you use with a threading bit
- Use a reversible drive tool that matches the hex drive in the product name, such as a bit holder or a drill driver with reverse. Keep speed low and alignment straight. If the thread is critical, finish with a controlled hand feel.
- Where do you find more technical information for this tool type
- Inch to mm conversion table as PDF
- Which hole preparation checks matter most
- Prepare the entry edge, remove burrs, and keep the hole clean so the tool starts straight. In blind holes, confirm that there is enough depth for the tool lead and chip space. In through holes, support chip evacuation out of the exit side.
- How do you reduce the risk of misalignment
- Start the tool with the axis visually aligned, then guide it through the first turns with low torque. Use stable workholding and avoid side load. If a thread feels tight early, remove the tool, clean chips, and inspect the entry.
- Can you use this in repair work
- Yes, for many workshop repairs you can use the tool to restore a usable thread when the base material is still intact. Clean damage first and avoid forcing, since distorted threads can increase torque and edge wear. For heavily stripped threads, a thread repair insert system can be the better option.
- Where can you find the full VÖLKEL catalog section for this product family
- VD 23 catalog as PDF
Do you need help selecting or using the product?
Use the contact form.
