The Kirk Hammett Bone Breaker set is the result of taking the success of Metallica tone and adding some new elements without sacrificing gain for clean or vice-versa. By making slight pre-amp adjustments and combining Alnico 5 and Ceramic magnets the perfect tone-beast was created. The Bone Breaker set consist of the BB-B Ceramic bridge and the BB-N Alnico 5 neck pickups. If you are looking for rhythm or lead tone, the Kirk Hammett Bone Breaker set offers crisp crushing leads or smooth rounded rhythm tone at the flip of the selector switch.