The STI HexTap V-COIL rapid machine tap is the ideal choice for producing a STI thread for thread inserts according to ISO 2 (6H). Thanks to its 1/4'' hex drive, it is suitable for both manual use and operation with a cordless screwdriver.
What is an STI thread?
A special pre-thread for thread inserts, ideal for reinforcing or repairing damaged internal threads.
What does Form D mean?
A cutting geometry with good chip removal – suitable for both blind and through holes.
How is the tap driven?
Via a 1/4'' hex drive – compatible with hand tools and cordless screwdrivers.
Which materials is it suitable for?
For free-cutting materials up to 900 N/mm², especially unalloyed and low-alloy steels.
What tolerances apply?
The tap corresponds to ISO 1 (4H); the finished thread with insert meets ISO 2 (6H).
Questions about selection or application? Our team is happy to help – simply use the contact form.
| Form | Form D |
|---|---|
| Material | HSS-G |
| Tolerance | ISO 1 (4H) |
| Size | M 14 x 1.25 |
| Overall length (L1) | 58 mm |
| Thread length (L2) | 35 mm |
| Diameter (B) | 15,6 mm |
| Drive connector | Drive mount hexagon 1/4" inch |
| EAN | 4022835034032 |
| Item number | 03403 |
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