Machine tap DIN 376 B HSS-E for through-hole – Koronet

The DIN 376 B HSS-E machine tap from Koronet is a precision tool designed for internal threading in through-holes. Made of high-quality HSS-E high-speed cobalt steel, it ensures stable operation, good wear resistance and high quality of the thread produced under production and workshop conditions. The tool is designed for machining structural steels, low-alloy steels and medium-strength materials, where repeatability and control of the threading process are required.

HSS-E steel – durability and load resistance

The tap is made of high-speed steel with the addition of cobalt (HSS-E), which is characterized by:

• increased resistance to torsional loads,

• better stability of operation at elevated temperatures,

• higher wear resistance compared to classic HSS steel.

Thanks to these properties, the tool ensures an even cut and a longer service life while maintaining a high quality thread.

Geometry B – for through-holes

The Type B typeface is designed specifically for:

• threading in through holes,

• stable and smooth insertion of the tool into the material,

• efficient chip discharge towards the hole exit.

This geometry reduces the risk of thread damage and improves the safety of the threading process, especially during machine work.

Straight grooves – a universal solution

The tap has straight grooves that provide:

• simple and stable cutting geometry,

• Good process control in standard applications,

• versatility in the processing of typical steel materials.

It is a proven solution used in series production and in workshop processing.

DIN 376 standard – design for deeper threads

Compliance with DIN 376 means:

• elongated tool design,

• the ability to make deeper threads,

• stable guidance in machine holders.

The tap is designed to work on CNC machine tools and conventional machines, where repeatability and precision are key.

Application

The DIN 376 B HSS-E machine tap is recommended for machining:

• structural steels,

• low-alloy and alloy steels,

• medium-strength materials,

• Parts that need to be threaded in through-holes.

The tool provides stable operation, good thread quality and reliability in everyday production applications.