Answer:
What kind of band never plays music?
What has a head and a tail, but no body or legs?
Who plays when he works and works when he plays?
I drift forever with the current and flows to your everyday life. I make living easy but I am good at killing people too.
I am rarely touched but often held. If you are smart you'll use me well. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?