Bernette 68 AirlockThe Overlock Coverstitch Combo machine with easy air threading The bernette 68 is a combo machine with overlock, cover , chain and combo stitches. Its many strengths include an air threader for easy threading of looper threads, 5" (130 mm) of space to the right of the needle for comfortable sewing of large projects especially for coverstitching, an integrated freearm for sewing cuffs, the bright illumination of the sewing area with 5 LEDs, and the