Check out these 3d printing firm images:
Ratchet Wrench printed on ISS
Image by NASA’s Marshall Space Flight Center
The ratchet wrench was developed by Noah Paul-Gin, an engineer at Created In Space Inc., a northern California firm that NASA contracted to design, build and operate the printer. Paul-Gin designed a three-D model of the ratchet and created a number of wrenches, such as the one shown here on an identical printer.
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