Open the spool and in the middle, drill an 8mm hole exactly where

the indentation is located on the edge of the spool. Next, cut from

the hole to the edge of the spool to allow the cable to enter, then

close the spool.

The handle should go on the side with a slight indentation, aligning

the indentation with the protrusion on the handle.

No need to worry about the other side, just snap it in.

Bill of materials

6 4x20 Wood screws

1 M6x40