Ultrasonic Horn for Ultrasonic Drilling Machine https://www.bjultrasonic.com/shop/ultrasonic-horn/ Ultrasonic drilling machines a method of brittle destruction by collision of abrasives which are forced against a work by an ultrasonically vibrated tool assisted by an appropriate  clamping force. The tool vibration can be of amplitude approx. 40-80 microns with frequencies of 25 kHz, sufficient to perform effective