For me its headphones unless I like what is playing in the shop (we have speakers in FAI connected to the shop speakers with our own volume control. I like hard rock/metal (Disturbed, Korn, Volbeat, Slipknot, ect...)
bfire85 I have been tasked with working on one job today running 14 castings. Each casting take about 45 minutes to run and they don't want me on any other parts. That being said... I have free time. Any other music recommendations??? I will be bored today. I have Parkway Drive on now.