12mm X 1.75 Thread Cleaning Tap 6in OAL

The 12mm X 1.75 Thread Cleaning Tap 6in OAL from ARP is an essential tool for any mechanic or automotive enthusiast working with precision engine building, head porting, or fastener installation. This metric tap is designed to clean, chase, and restore damaged or contaminated threads in critical engine components, ensuring thread integrity and performance reliability.

Featuring a 12mm metric diameter with a 1.75mm pitch, this tap is compatible with M12 x 1.75 fastener applications common in European and high-performance engine platforms. The 6-inch overall length provides excellent reach into recessed bores and deep engine cavities. Constructed from High-Speed Steel (HSS), it allows for controlled cutting action that removes debris and minor thread damage while re-establishing clean thread geometry.

This tap is indispensable for engine builders, machine shops, and serious DIY mechanics tackling head gasket replacement, stud installation, or any work requiring thread restoration. Proper use with cutting fluid ensures smooth operation and extends tool life, especially when working with aluminum heads or cast iron blocks where thread stripping risk is highest.