The Bare Knuckle Pickups Brute Force Neck Humbucker is hand wound in the UK, features ceramic magnets and is mainly aimed at progressive metal, thrash, hardcore and extreme metal styles. From their Boot Camp range, the Brute Force pickups are in the high output range and produce a deep, saturated tone. The Bare Knuckle Boot Camp is a stripped back, no-nonsense pickup range aimed at guitar players who just want to cut to the chase and have great tone. The 50 mm pole spacing is the standard for neck humbuckers (including most guitars with tremolos), a larger pole spacing is only needed on guitars with wide nuts (and a tremolo).