The 151 Series is distinctive in styling and quality, the Imperial™ made its first appearance in the 1970’s. The most notable feature of this unique machine head is the futuristic Three-Step button, a fresh and funky design trademarked by Grover®. • Sealed-in, lubricated gears • 16:1 gear ratio • 25/64” post hole • Post length to hole: 22.2mm • Overall post length: 27.4mm • Weight per pc/per set: 1.8oz/10.8oz • Max. string gauge: .074” • Hardware included (bushings, screws) • Drop-in replacement for: 152 Series Available in: For standard guitars, 3 Treble and 3 Bass, Set of 6 No. 151N Nickel No. 151C Chrome No. 151G Gold
