• Model number: HM-M1
• Material: Agate
• Size: f34 x 73mm
• Weight: 140g 
• A little (1*g* grade) shock pulverization can be performed by gesture.  
• The up-and-down motion of the cylinder stick in a pipe grinds.  
• Grind with KBr powder and it is suitable for an infrared spectroscopic analysis.  
• HM-A1 is Mill made from the alumina of 96% of purity, and fine pulverization is efficiently possible for it in a short time.