Internal thread cutting taps commonly used by the working part is usually composed of two parts and the peduncle

Currently in the machinery manufacturing processing thread cutting taps commonly used by the working portion and the peduncle is usually composed of two parts, its structure is monolithic, the tap to form a groove longitudinally on the cutting edge and the chip flute. When processing large pitch, large diameter deep internal thread, due to friction, cutting force larger and more chips, tool chip space is small,  polycrystalline diamond  chip removal tool easily damaged and broken. And in the event there is a tap on the missing teeth wear, we should scrap the whole tap, resulting in a great waste. To this end, developed a novel structure, may need to mix and match with new  grinding wheel  cutting tools (hereinafter referred to as the new TAP), which can effectively overcome the existing technical defects exist taps. Second, the structural design of the new tool of silk cone taps, taps lever taps caudal peduncle, set screws and adjust the slider, etc., which tap rod and tap caudal peduncle are two parts of the same part. Compared with ordinary tap, the fundamental  Polycrystalline diamond : to break the traditional tap the overall structure and replace it with detachable modular structure and the use of adjustment slider. But it still has the structural characteristics of ordinary tap, which also has a working portion and the caudal peduncle two part structure.