Rotary Hook For Durkopp Adler Machines. Complete Rotary Hook Assembly For DURKOPP ADLER Industrial Sewing Machines. Part # : 068-15-138-4 (Complete with bobbin cap). This high quality rotary will fit Adler models 67, 68 Class industrial sewing machines. Us if you have any questions.The item "Hook Complete For DURKOPP ADLER 67, 68 Class Industrial Sewing Machines" is in sale since Friday, April 29, 2016. This item is in the category "Crafts\Sewing\Sewing Machine Accessories\Machine Parts & Attachments". The seller is "cutextilemc" and is located in New York, New York. This item can be shipped worldwide.