Open Ended Drain Plug Wrench

Open Ended Drain Plug Wrench, for use in some boats, including Yamaha SX230. Some plugs are available with non-standard endings. The open end wrench can be used on those. Small to fit the MP Mini, which is the printer I have.

There is a small hole to optionally thread a fishing line, to secure the wrench to the boat, a float.

The sides of the square nut on the plug are about 14mm long. The wrench is built with 15mm width to allow some play. My printer calibration is not dead on, so mine pr