Known commercially as Mixom's Beavertooth, it is a chainsaw powered by some kind of internal combustion engine (as seen by the smoke it generates when started). The player may aim it like most other weapons but it is still only effective in melee combat. The length of the Beavertooth chainsaw is 30" according to the boxes the saws came in. It is the game's most powerful melee weapon, first found in Service Room 2A of Communications Transfer. This same area also shows the zombies first making use of them against you.