A small spindle that is wound with thread. It supplies the bottom thread during the stitch formation.

(a)  

It holds the bobbin

(a)  

It is used to control the direction of the thread. It also helps plenty of supply of thread.

(a)  

It is used to control tightness or looseness of the upper thread to avoid puckering problem.

(a)  

The main functions of this tool are threading the sewing needle and maintain the proper tension

(a)  

It is used for raising and lowering the pressure foot

(a)  

The main function of this tool is to maintain the length of the stitch during sewing

(a)  

The main function is to raise and lower the needle through manual labor. It is used when an extremely thick piece of fabric is required to be sewn.

(a)  

It is a rectangular shape which is situated beside the pressure foot, it helps the removal of bobbin case without lifting the machine.

(a)  

It helps to pass the cloth through the machine in forwarding direction during the sewing.

(a)  

It is used to put the pressure on the fabric during sewing. It helps to prevent wrinkle that could mess up the stitch.

(a)  

It controls the speed of the sewing machine. If you apply more pressure to the pedal you can sew faster.

(a)  

Back sew is a button which is used to restitch over a very short area to increase the seam strength.

(a)  

It helps to wind the sewing thread to the bobbin.

(a)