The Hertel Thread Forming Tap is a precision machining tool designed for creating M5x0.8 metric threads with a bottoming chamfer. Crafted from high-quality high-speed steel with a durable titanium nitride finish, this tap offers superior performance and extended tool life. The 7/8" thread length provides ample cutting surface for consistent thread formation, while the D7 designation indicates its specific dimensional characteristics. This thread forming tap creates threads by displacing material rather than cutting it, resulting in stronger threads with improved fatigue resistance. Ideal for professional machinists and manufacturing applications, this Hertel tap delivers precise, reliable results when working with various materials. The bottoming chamfer design allows for threading closer to the bottom of blind holes, maximizing the usable thread depth in your workpieces.