HELI-COIL Screw Thread Insert STI Tap: Straight Fute, M3x0.5 Metric, D2 / 5H, 3 Flute

This STI tap is used to cut internal threads in metal or plastic for installing HELI-COIL screw thread inserts. It is a general-purpose tool for repair or production applications where a strong, wear-resistant thread is needed, commonly in automotive, aerospace, and industrial maintenance.

The HELI-COIL STI Tap 2087-3 is an M3x0.5 Metric tap with a D2 / 5H tolerance, 3 straight flutes, and a plug chamfer. It is designed for cutting threads that accept HELI-COIL inserts. The tap is made by HELI-COIL and is suitable for general-purpose thread repair.

You can source the HELI-COIL STI Tap 2087-3 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine HELI-COIL tooling for thread repair applications.

Select an STI tap that matches the insert's thread size and pitch, such as M3x0.5 Metric. The tap tolerance (D2 / 5H) must align with the insert's internal thread class. Use a plug chamfer for through holes or bottoming chamfer for blind holes. Always refer to the HELI-COIL insert specifications for correct tap selection.