We needed to fit a braille nail at the spindle head that will make impressions of the braille characters on the material below.

For the same, we chose a drilling nail as it best fitted the diameter of the CNC nozzle. We optimized the nail length, nail tip breadth and sharpness by cutting and grinding on a Bench Grinder to ensure the diameter of the braille dot is suitable to the international standards. 

The needle was then attached at the bottom of the CNC spindle, ready to be used for embossing Braille characters.