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Old 12-14-2003 | 12:11 AM
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Billyman
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From: Clinton, NC
Default RE: Id rather be BLOWN!!

Here we go again....

A true roots rotor has some (miner) helical (or twist) to the rotor.

The “pencil sharpener” example you gave is a screw type blower.

B&M makes both roots and screw type.