3 5/8" OD Aluminum kit, steel threads
Our most popular draft knob.
This fore fin aluminum draft knob is sand cast from the original Fisher pattern.
After you print the cut out, template drawing, you will see two arrows pointing towards each other (lower part of the drawing), measure between the lines it should be 5/8" if it is, then you have the correct size template as designed. If it is not the right size, adjust your printers page setup.