Thread Cleaning Tap - 11mm x 1.50 x 152mm

The ARP Thread Cleaning Tap – 11mm x 1.50 x 152mm is a precision-engineered restoration tool designed for automotive enthusiasts and professional mechanics who work with fastener systems on high-performance engines and custom builds. This metric thread-chasing tool restores damaged or fouled threads without requiring complete fastener replacement, saving time and cost during engine rebuilds, head gasket service, or custom engine work.

Whether you're reassembling a freshly ported cylinder head or recovering threads compromised by previous removal cycles, this ARP tap delivers the precision necessary for critical engine assembly applications. This thread cleaning tap features a thread size of 11mm with a pitch of 1.50mm, accommodating standard metric fastener specifications common in modern engine block and cylinder head applications. The overall length of 152mm provides optimal leverage and control during tapping operations, while the precision-ground flutes ensure clean chip evacuation and consistent thread geometry restoration.

ARP's manufacturing standards guarantee that each tap produces clean, concentric threads that accept fasteners with proper fit and clamp load, critical for maintaining seal integrity in high-combustion-pressure environments where thread tension directly impacts gasket sealing and bolt preload reliability. Mechanics performing engine overhauls, head gasket replacement, or custom fastener installation will find this tap essential for restoring bolt holes damaged by corrosion.