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Spiral-Flute STI Taps
Available2 products
Spiral-flute STI (screw-thread insert) taps pull chips out and away from the hole as the tap moves into the hole to create threads, which helps prevent chips from packing in the hole. They are used for creating oversized internal threads in blind holes so a helical-coil screw thread insert can be inserted in the hole. The insert distributes the load across the length of the threads and improves the threads' strength when a fastener with a standard screw thread size is installed in the hole.
Thread Length
TiCN-Coated Powdered-Metal Spiral-Flute STI Taps
The TiCN coating on these taps protects them from wear and is harder and more wear-resistant than a TiN coating. These taps are made from powdered metal, which has a uniform microstructure and grain distribution that gives the material a similar strength as carbide. Powdered-metal taps are tougher and less likely to break than cobalt and high-speed steel taps. They are used for tapping highly abrasive materials such as high-silicon aluminum.
Metric + Right Hand + 3 Flute
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Metric Coarse + Right Hand + 2 Flute
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Metric Coarse + Right Hand + 3 Flute
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Metric Coarse + Right Hand + 4 Flute
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UNC + Right Hand + 2 Flute
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UNC + Right Hand + 3 Flute
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UNC + Right Hand + 4 Flute
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UNF + Right Hand + 2 Flute
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UNF + Right Hand + 3 Flute
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UNF + Right Hand + 4 Flute
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