HeliCoil taps are used for general and machine operations. The standard STI tap can be an essential tool to create threads ideal for threaded inserts. It is recommended that these taps are used with a CNC machine or other high-precision equipment to ensure a proper class of fit. A "Screw Thread Insert Tap" (also known as an STI Tap) is explicitly designed to install some thread inserts, including HeliCoils. An STI tap differs from a standard fastener thread tap; it can not be used interchangeably
HeliCoil from high carbon steel and heat treated for maximum strength and durability so they can handle the toughest jobs without breaking! All HeliCoil taps feature precision ground tips for superior accuracy and chip clearance. Each tap has its own unique size chart so you can choose the right one for your application
Helicoil taps have been developed specifically for the installation of Helicoil self-tapping screws. This unique tap features an internal helix that ensures that the cross-section of the tapped hole remains constant during installation, which prevents thread failure caused by over-tightening or stripping by hand. This is critical since Helicoil self-tapping screws are not designed to be installed with traditional fastener taps due to their unique geometry and thread profile
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