Automatic button hole with easy buttonhole size adjustment which further enhances ease of operation. A newly introduced mechanism in the needle thread trimmer prevents interference with the positioning of buttonholes. The shape of the face plate is designed to provide sufficient clearance around the needle entry position. The work clamp can be lifted as high as 12mm enabling the machine to make high-quality buttonholes in heavy-weight materials.

This machine is capable of sewing heavy-weight materials such as bulky knits The pressure required to depress the start pedal and lifter pedal has been reduced which helps to dramatically reduce operator fatigue The knife mechanism and stop-motion mechanism produce less noise when they actuate, thus contributing to a more comfortable working environment.