Ultrasonic machining (UM) is considered to be a very effective and relatively accurate way to engrave fine patterns and drill holes on brittle materials. This study aimed to investigate the feasibility of utilizing UM technique to fabricate parts of britt Ultrasonic machining (UM) is considered to be a very effective and relatively accurate way to engrave fine patterns and drill holes on brittle materials. This study aimed to investigate the feasibility of utilizing UM technique to fabricate parts of britt