The Hertel 1/4-20 UNC Thread Forming Tap is a precision machining tool designed for creating internal threads without producing chips. Made from high-quality high-speed steel with a bright/uncoated finish, this tap delivers exceptional performance across various materials. Its bottoming chamfer design allows threading closer to the bottom of blind holes, maximizing thread engagement where needed. With precise dimensions including a 1" thread length and 2-1/2" overall length (OAL), this tool ensures accurate threading applications every time. Manufactured to H4 thread limit specifications, it provides consistent and precise thread formation for reliable fastening results. This professional-grade tap is ideal for machinists and manufacturing operations requiring 1/4-20 UNC thread specifications. The durable construction ensures long-lasting performance in demanding industrial applications.