Please specify the details of header punches as follows when you inquire or order:

1. The material of header punches you need or the material of screw you used.

2. The head styles header punches you need.

3. The specification of standard you used, for examples: JIS, ANSI or DIN. 

4. The screw size & header punch dimension, for example: M3.0, D12*25

5. The surface coating type, for example: Plain, Tin, Ticn, Tialn.

6. It is also available for the specification with your own special design by drawing or samples.