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Thread Repair Index
Powercoil Gauges

Powercoil Thread Repair Kit

Spark Plug Kit

Tang Breakoff Tool

Inserting Tool

Powercoil Range Kit

Loksert Reduce Diameter Inserts

Sti Hss Tap

Powercoil taps differ from standard taps dimensionally and only Powercoil Screw Thread HSS (STI) Taps are suitable for use with Powercoil Wire Thread Inserts. Powercoil taps are manufactured to precise standards from either High Speed Steel (HSS) or (HSS-E) with ground threads and are available with taper, intermediate and bottoming leads.
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Wire Thread Inserts

Wire thread screw inserts are larger in diameter before installation than the Tapped hole. During installation the inserting tool tightens the insert which reduces the diameter of the leading coil so it can enter the tapped hole. After installation, each high tensile stainless steel coil expands outward against the tapped hole to permanently anchor the insert.