HSS Left-Hand Taps

About

HSS Left‑Hand Taps HSS Left‑Hand Taps are high‑speed steel threading tools designed to cut left‑hand (reverse) threads inside pre‑drilled holes. Ideal for both hand and machine tapping, these taps produce reliable internal threads in a wide variety of materials — from mild steel and aluminum to stainless or cast iron. Available in multiple sizes, pitches, and styles (taper, plug, bottoming), HSS Left‑Hand Taps are essential wherever reverse‑threaded fastenings are needed — such as in mechanical assemblies, repair work, or specialized manufacturing.