The Razersaw is a hardmode weapon/tool dropped by Skeletron Prime MK2. It functions as a sword and chainsaw.
200% axe power
140 melee damage
Very fast speed
12% critical strike chance
Tooltip: "Cut through wood and slay beasts!"
It has the same sprite as Skeletron Prime MK2's saw. (It is Work In Progress!)
The spelling of "Razor" is a reference to the gaming company Razer.