hi,

You can try to contact Bullen Ultrasonics , tel  513-456-7133. The
ultrasonically mill glass. They do very nice work.

Rick


Rick Morrison
Sr. Semiconductor Engineer
Radant Mems Inc.
255 Hudson Road
Stow Ma, 01775
Tel- 978-562-3866
Cell 508-801-4796
AMS Phone: 508-770-3521
EMAIL  rmorrison@radanttechnologies.com