Horizontal rotary hook. Stitch length adjustment up to 5 mm and zig-zag width adjustment up to 7 mm. The presser foot can be raised up to 11 mm.
Main features include: upper thread tension control, adjustable presser foot pressure and needle positions, speed and upper thread tension control, built-in needle threader, free arm, LED lighting as well as the ability to drop the feed dog.
HIGHLEAD/HLS GM900-4Z 4-thread overlock machine with stand. table (semi-submerged machine head inst.) 









