A grinder is a tool used to grind smoking herb i.e. marijuana/weeds into a fine form that everyone wants.
The most grinders are palm-sized cylinder shape, consist of a top and bottom interlocking halves, both halves have metal teeth patterns designed to shred and tear dried herb into a consistent grind. Dry herb is placed in between the teeth of the grinder, and then both halves are locked and move in opposite directions. This motion moves the teeth together grind the dry flower or leaves into smaller particles.
Some Grinders have 2 pieces top and bottom halves and some have 3 or 4 pieces including pollen screens and bottom catch. The grinder is mostly operated manually by hands but they also come in powered operated type i.e. battery-powered and electric.
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