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sewing machine 
Machine used to assemble two pieces of fabric by means of a series of stitches made with a needle and thread.
needle 
Metal stem that passes the thread through the fabric to form a stitch.
point 
Lower end of the needle, used to pierce the fabric.
eye 
Hole at the bottom of the needle that the thread passes through.
blade 
Part of the needle between the shank and the eye.
groove 
Narrow channel in the needle for guiding the thread.
shank 
Upper end of the needle that fits into the needle clamp.