Tube Mill Control Volume 40mL Max Grain Size 10 mm Max Grain Hardness 5 Mohs Max Speed 25 000 RPM Height 6.7 in Width 7.1 in Depth 11.8 in Weight 5.9 lb Voltage 220-240/100-120 Features Clearly Arranged Multilingual OLED-Display Programmable And Storable Test Conditions Error Code Display Easy Operation With Touch Keypad Dust Proof Sealed Housing Reproducible Test Results Includes Grinding Chamber Timer