pin 
Small pointed metal stem with a head; it is used to fasten two pieces of fabric and to mark fabric during fittings.
needle 
Metal stem that passes the thread through the fabric to form a stitch.
emery pack 
Small cushion filled with powdered emery; it is used to maintain the points of pins and needles.
thimble 
Metal sleeve used to protect the middle finger, which pushes the needle when sewing by hand.
needle threader 
Instrument that makes it easier to insert the thread into the eye of the needle.