HELICOIL 18187-16 STI Tap
HELICOIL 18187-16 STI Tap
Product Description:
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The STI Plug Tap is a specialized threading tool used to cut oversized internal threads that accommodate screw thread inserts (STI/Heli-Coil® type inserts). Designed with a 3–5 thread chamfer, the plug style tap provides an excellent balance between easy starting and full thread cutting, making it ideal for both through holes and shallow blind holes.
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Manufactured from high-speed steel (HSS) or premium alloy steels, the STI Plug Tap ensures precision, durability, and clean thread formation across a wide range of materials including steel, aluminum, and non-ferrous alloys. It is a critical tool in thread repair, maintenance, and assembly, ensuring strong, reliable threads for industrial, automotive, and aerospace applications.
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The STI Plug Tap is commonly included in thread repair kits and is an essential tool for restoring damaged threads or reinforcing new installations with threaded inserts.
Product Specification:
- Brand – HELICOIL
- Part Number – 18187-16
- Part Name – STI Tap
