For downloads see our downloads page for the High Speed single needle, needle lockstitch machines.
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The product specifications for the 3901 AUT:
The product specifications for the 3901 LH-AUT:
NF 3901 AUT – All-in- one high speed, needl feed lockstitch machine with fully automatic lubrication, thread trimmer and back tack. Motor, control box and control panel are integrated in the machine. The bobbin winder is built-in the machine head as well. Presser foot lifter is available as an option.
NF 3901 LH-AUT – Same as above, but equipped with large hook.