Sailmaster 366-76-12-HM (CowBoy 9366-31HA www.cowboysew.com/product5.htm) high and long arm heavy duty 3-step zigzag sewing machine for sail makers and repairs: today boats are getting bigger it is almost a necessity if you are to make repairs in the middle of a large sail to have a larger machine. #366-76-12-HM is one of the largest heavy duty zigzag sail making machine in today market, it can stitch more than 20 oz. sailcloth, using thick thread up to V207 and needle #250. Covered straight stitch, standard zigzag, 2-step and 3-step zigzag. This is the improved version of Durkopp Adler 366-76-12-HM.
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