Kirk Hammett first visited EMG back in the early 80's when Metallica was a local group on the rise. We worked closely with him to release his first Pro-Series system, the KH20. Fast forward many years to today and Metallica is still leading the pack and Kirk is still searing though solos and ripping those monster chords. Over the years as venues grew bigger and techniques were refined, Kirk required different tools for different jobs, and so we offer his second Pro-Series system, the EMG KH21.