HexTap Type DS - Double ended tap, Multi-Drive Form C HSS-G - UN 1.3/4 x 8 | VÖLKEL
HexTap Type DS - Double ended tap, Multi-Drive Form C HSS-G - UN 1.3/4 x 8
This HexTap Type DS supports surface treatment rework and production support when threads tighten after coating, cleaning, or contamination.
The two ended format reduces tool changes, and Multi-Drive helps you match the drive to the torque level of the application.
- Re tap UN threads after cleaning processes such as blasting or degreasing.
- Cut new UN internal threads on repair plates, brackets, and machine structures.
- Chase threads to verify that fasteners run freely before final torque application.
- Support assembly lines that require quick thread correction without long tool changes.
Note After tapping, remove chips and clean the thread before assembly to avoid false torque readings during tightening.
- Helps restore thread function after surface treatment or contamination.
- Multi-Drive supports flexible driving methods when access changes.
- Two ended design reduces the need for separate roughing and finishing tools, depending on execution.
- HSS-G and Form C support stable, repeatable thread cutting in workshop practice.
- Supports both corrective tapping and new thread production tasks.
Drawbacks
- Not suitable for severely damaged threads where material is missing from the thread flank.
- Not intended for maximum output applications that require specialized machine tooling.
- Confirm the thread task as new cutting or corrective re tapping.
- Clean the hole entrance to remove residue and contamination.
- Secure the part to keep the tapping axis stable.
- Fit the Multi-Drive interface to a suitable driver for the clearance. Technical information HexTap DS as PDF
- Apply cutting fluid at the entry and on the tap.
- Start cutting with stable alignment.
- Cut the thread while clearing chips to prevent jamming.
- Verify free running of the fastener after cleaning.
- HexTap Type DS double ended tap in the selected UN size and execution.
- Tool type: HexTap Type DS double ended tap
- Thread type: UN internal threads
- Size: UN 1.3/4 x 8
- Drive interface: Multi-Drive interface
- Tool material: HSS-G
- Chamfer: Form C chamfer
- Use: thread cutting, re tapping, and thread cleaning depending on condition
- Process: manual driving or assisted driving depending on your holder and machine setup
- What does UN 1.3/4 x 8 mean on the product name?
- It identifies the UN thread size and the pitch in threads per inch as written on the tool. Match it to the mating fastener or drawing, and avoid mixing similar UN sizes.
- What is the role of the second end during thread correction?
- Depending on execution, the second end supports a follow up cut that improves the thread surface after the initial pass. This is useful when threads are tight due to contamination or minor deformation.
- Can you use a ratcheting setup with this tap?
- If your ratchet and adapter match the Multi-Drive interface, it can be a practical option in confined spaces. Keep torque steady and avoid side load.
- How do you select chamfer form for your hole type?
- Hole type, depth, and material influence the choice. If the application is unclear, test on a scrap piece with the same setup.
- How do you keep thread quality consistent over time?
- Keep the cutting edges clean, store the tool protected, and replace the tap when edges show wear. Also keep hole preparation consistent.
- Does re tapping change the effective thread fit?
- It can change fit if you remove material or cut off axis. Use careful alignment and stop once the thread runs freely.
- Where can you find more technical data and selection guidance?
- For additional specifications and application guidance, see the VÖLKEL catalog. VD 23 catalog as PDF
Do you need help selecting or using the product?
Use the contact form.
