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The MFS Nemesis is a solid stainless steel Mechanical MOD that features an adjustable silver-plated center pin and adjustable airflow control.
Mechanical MODs have no electronics / no protection circuit and should ONLY be used with IMR type batteries with a Short/Safety Fuse.
The Nemesis has a bottom switch design that is lockable and has removable tubes which allows you to use IMR 18350, 18500, or 18650 Li-Ion Batteries all in one device!
Posted by Robert Hughes on 3rd Apr 2014
My Nemesis arrived clean and free of machining oil and screwing and unscrewing the various tubes a few times have left the threads buttery smooth. The locking ring and literally be spun one way or the other with a snap of the fingers. Voltage drop is very low and it hits like a freight train. I couldn't be happier.