The STI HexTap V-COIL rapid machine tap is the ideal solution for producing a precise STI thread for inserts according to ISO 2 (6H). The 1/4'' hex shank makes it perfect for manual use or for work with a cordless driver.
For more details about HexTap, visit:
HexTap – The solution for difficult threads
Tip: Detailed information on difficult threads:
HexTap – The solution for difficult threads
What is an STI thread?
An STI thread is a special oversized thread used for installing thread inserts – ideal for reinforcement or repair.
What does Form D mean?
Optimized chip evacuation, suitable for blind and through holes.
How is the tap used?
With a 1/4'' hex shank – compatible with hand tools or cordless drivers.
Which materials is it suitable for?
Free-machining materials up to 900 N/mm², especially unalloyed and low-alloy steels.
What tolerances apply?
The tap corresponds to ISO 1 (4H); the finished STI thread with insert corresponds to ISO 2 (6H).
Do you have questions about selection or application? Our team is happy to assist – simply use the contact form.
| Form | Form D |
|---|---|
| Material | HSS-G |
| Tolerance | ISO 1 (4H) |
| Size | M 12x1.25 |
| Overall length (L1) | 50 mm |
| Thread length (L2) | 30 mm |
| Diameter (B) | 13,6 mm |
| Drive connector | Drive mount hexagon 1/4" inch |
| EAN | 4022835034018 |
| Item number | 03401 |
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