Connect cardboard as simply as righty tighty, lefty loosey.
For use with the Makedo Scru and Scru+.
How to use the Scru-Driver:
Simply punch a hole through the material, insert the Scru or Scru+ into the socket on the end of the Scru-Driver, and then with a few quick turns the cardboard will be securely joined.
1x Makedo Scru-Driver cardboard construction tool.