How to identify the classification of taps

Tap classification 1. According to the drive different points: hand taps and machine taps 2. According to the processing method: cutting tap and extrusion tap 3. According to the thread to be processed: metric coarse tap, metric fine tap, pipe thread tap, etc. 4. According to its shape, it is divided into straight groove tap, spiral groove tap and screw tip tap.

Straight groove tap It has strong versatility. The cutting cone can have 2, 4, and 6 teeth. The short cone is used for non-through holes and the long cone is used for through holes. As long as the bottom hole is deep enough, you should try to

The length of the cutting cone is selected, so that the teeth sharing the cutting load are more and the service life is longer.

Spiral groove tap More suitable for processing non-through hole thread, experience tells us: processing ferrous metal, the spiral angle is chosen to be smaller, generally around 30 degrees, to ensure the spiral

The strength of the teeth. For the processing of non-ferrous metals, the helix angle is chosen to be larger, and it can be cut at about 45 degrees.

Content chip tap Its distinctive feature is to open a large enough chip pocket in the head, using a special design to achieve higher processing quality. Especially in the area of ​​large thread processing

The advantages are significant. Widely used in wind power, steam turbines, shipbuilding, mining and other industries.

Screw tap The chips are discharged forward when the thread is machined, and the threaded taps are preferred for the through-hole threads.

Extrusion tap According to the method of use, it is often divided into hand taps, machine taps, nut taps (for cutting threads on nut processing machines), die taps (for

Cut and calibrate die threads), pipe thread taps and taper thread taps.

Machine and hand taps It is a standard tap that cuts ordinary threads. In fact, the structure and working principle of the two are basically the same.