... distance 2-4mm 4,overeding width 7-15mm 1,GN20-3A carpet binder2,thread thread,16mm sewing ability3,needle distance 2 ... -4mm4,germany technologyGN20-3A 3-thread edging machine for carpet-making is suitable for ... available with special order)Thickness of material14mmMax. speed1400rpmMotor power370W GN20-3A carpet binder