20020 14mm threaded spark plug thread chaser

This Lisle 14mm threaded spark plug thread chaser is a lifesaver when you are dealing with fouled or damaged threads in tight spots. Designed specifically for limited access areas, it is perfect for cleaning up both 14mm spark plug holes and oxygen sensor threads on your Harley. Whether you are working on a late-model Twin Cam or an older Evolution engine, keeping those threads clean ensures a proper seal and prevents catastrophic cross-threading. It is designed to be used with a standard 3/8-inch drive ratchet or extension bar, giving you the reach you need in confined engine spaces. This is a universal tool that belongs in every mechanic's roll cab to ensure smooth maintenance and avoid costly cylinder head repairs.