The seamstress must have special tailor's scissors.

 The seamstress must have special tailor's scissors. Three fingers of the right hand, the ring, the ring and the middle one are put into the largest hole and the index finger of the same hand is put into the smaller hole, the thumb of the same hand is on top of the scissors - only in this way you need to hold the scissors. These scissors cut the cut and cut the fabric. Moreover, when the fabric is cut, these scissors are placed on the table with an edge on the side where there is a large hole, between the edges of the fabric, and so moving directly along the table, making cutting movements cut off the fabric and the pieces that are cut off should be towards themselves.