Bernina L850 234Thread Freearm Overlocker Serger 3-9mm Wide 1Step Jet Air Looper Threading, Needle Threader, Knee Lift, Swing Foot, ExtTable, DC Motor

A feature unique to BERNINA is called Micro Thread Control or mtc. This allows for the fine tune ajdustment of the stitch finger left and right. In conjunction with the cutting width, you can use the mtc to achieve the perfect stitch width while controlling exactly where the threads meet the edge of the fabric.