Tech Data for machinable materials

Macor
Shapal-M
Pyrophillite
ZSBN
Boron Nitride
PTFE
Steel (mild)

Pyrophillite
ALN
BeO
Silicone Nitride
Porcelain
Silicone Carbide
Zirconia Yttizia

Zirconia Mgo
ULE
Alumina
Quartz
Sapphire