The Hertel Plug Hand Pulley Tap is a precision threading tool designed for professional machining applications. Featuring a 3/8-16 UNC thread size with H3 thread limit, this high-quality tap ensures accurate and consistent threading results. Constructed from premium high speed steel with a bright finish, it delivers exceptional durability and cutting performance in various materials. The 4-flute design facilitates efficient chip evacuation and creates smoother cutting action for cleaner thread formation. With a generous 10-inch overall length, this plug-style tap provides excellent reach and leverage for hand tapping operations, making it ideal for both through holes and blind holes that have been pre-drilled to the appropriate size. Perfect for maintenance shops, manufacturing facilities, and professional toolrooms where precision threading is essential. This Hertel tap combines superior craftsmanship with practical design for reliable performance in demanding industrial applications.