УПОРНЫЙ МЕТЧИК Caterpillar 4C4971

The Bottoming Tap forms internal threads within pre-drilled holes, allowing threads to extend close to the bottom of blind holes. It follows initial thread formation tools and continues the threading process to achieve full depth engagement where standard taps cannot reach. The cutting edges remove material in a controlled manner, shaping the internal surface into defined thread profiles that match mating fasteners. The tool operates by rotating within the hole while applying axial force, allowing its cutting edges to progressively shape the thread geometry.Attributes:• Extends the threading process to the bottom of blind holes.• Forms thread profiles matching mating fasteners.• Removes material to create internal thread geometry.Applications: The Bottoming Tap cuts and extends internal threads to the full depth of blind holes to allow complete fastener engagement in applications requiring maximum thread utilization within limited hole depth.