Drill America DWTST3/8-64P 3/8"-64 HSS Plug Hand Tap tubing

3/8"-64 HSS Plug Hand Tap

This Drill America tap cuts internal threads in a 3/8"-64 size using high-speed steel. It suits machinists and maintenance technicians who need to create or repair fine-pitch threads by hand or under power. The plug chamfer is designed for general use in through holes across a wide range of materials.

High-speed steel construction and plug chamfer

The HSS body resists wear during repeated tapping operations in steel, aluminium or plastics. A plug chamfer provides a moderate lead that starts the thread squarely and clears chips forward in through-hole applications. This geometry reduces the risk of cross-threading compared with bottoming taps.

Fine-pitch 64 threads per inch limit

The 64 TPI pitch produces a shallow thread profile that offers less load-bearing area than coarser series, so it is not suited to high-torque fastenings or soft materials where threads may strip. Users requiring deeper engagement or faster cutting speeds should consider a different pitch series. The product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.