GBJ 3/8-32 UNEF HSS Tap And Die Set | High Speed Steel Thread Cutting Tools

About This Product

For machinists, mechanics, or serious DIYers, this GBJ 3/8-32 UNEF tap and die set is professional-grade quality. UNEF (Unified National Extra Fine) threads are less common but essential for certain applications where fine threading is needed. The high-speed steel (HSS) construction provides excellent wear resistance and stays sharp through multiple uses. This set includes both the tap for cutting internal threads and the matching die for external threads - everything you need for complete threading jobs. It works great on carbon steel, alloy steel, cast iron, and most non-ferrous materials. The matching drill bit size is 0.34 inch (8.73mm) for proper tap drilling. The craftsmanship is precise with clean, sharp cutting edges that produce smooth, accurate threads every time. Whether you're repairing existing threads, creating new ones, or working on precision machinery, this tap and die combination delivers professional results. The UNEF thread pattern is perfect for applications where standard threads won't work. For toolboxes, machine shops, or any situation where you need reliable threading capabilities, this GBJ set offers solid performance at a reasonable price. It's one of those specialized tools that pays for itself the first time you need it.