Tangless CoilThread inserts are a helically-coiled, bi-directional, wire design; that install using a drive notch located at either end of the coil insert instead of a tang located at one end of the inserts.
KATO Tangless inserts are identical, in form, fit, and function to conventional tanged inserts (e.g.,CoilThread, Heli-Coil & Recoil). In fact,Tangless CoilThread inserts are identical to tanged inserts in every way except for their method of installation & removal. KATO Tangless inserts even have the same procurement specification (NASM8846 for unified sizes and MA1565 for metric sizes) as tanged inserts. KATO Tangless inserts eliminate tang break-off and retrieval, are easily adjusted after installation, and offer non-destructive removal. In addition, Heli-Coil and Recoil Tangless inserts are manufactured under license from KATO!
KATO CoilThread Tanged inserts are a continuous, helically-coiled, wire design allowing installation using a segment of wire (tanged) centrally located at one end of the insert.