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The weapon was made available as a reward for completing the weekly challenge of "Destroy different kinds of robots" in Survival mode from July 2 to 8, 2019.
The pipe wrench is a heavy metal wrench, specked with rust and covered in chipped red paint. Although other wrenches appear in the game, the pipe wrench is the only one used as a makeshift melee weapon.
Mechanic's Best Friend was a reward for completing the "Destroy different kinds of robots" weekly challenge in Survival mode. The requirements were as follows:
- Destroy an assaultron
- Destroy a protectron
- Destroy a sentry bot
- Destroy a Mr. Handy or Mr. Gutsy robot
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