It is an aircraft aluminum grinder and an aluminum chamber part pipe
High quality aluminum alloy tooth,Razor Sharp Cutting Blades.
Thin polly O-ring around top grinding section, for smooth grinding and no friction.
The grinder with 4 parts,with mesh layer, pollen catcher and a scraper.The Diamter of the grinder:2.0inch (50mm),the height:1.8 inch (46mm)
Precision tapping make our grinder skid resistance and tightly closed between each layer