TMI 135.21.1.200507 - Direct Drive 3 Thread Narrow Edging Flat Bed Overlock Industrial Sewing Machine Product Details Max Sewing Speed: 6000 Spm Needle No: 1 Thread No: 3 Stitch Width: 1.5 - 3 mm Stitch Length: 3.2 Presser Foot Lift Height: 5.5MM Differential Ratio: 0.7-2.0 Overall Dimensions: 470*365*480 Weight: 27/34 Power: 550W