Hipshot Grip-Lock 6 in line non-staggered post Chrome locking tuners with UMP Manufacturers Part number: 6K1GL0C. These are genuine, factory-fresh Hipshot Grip-Lock tuners, for 6 In-line headstocks, with Hipshot buttons finished in Chrome and with full manufacturer warranty. These tuners have non-staggered posts, suitable for all 6-in line headstocks that tilt back. If your headstock tilts back, as on a Gibson Explorer, you need a 6 In-line non-staggered set. Hipshot keeps a massive inventory of Hipshot Grip-Lok guitar tuners, including the custom buttons, Left hand and 7-string sets. Installation - fits almost all guitars. The posts are 3/8 and fit a hole drilled as 10mm or 25/64". Everything you need to install including bushings and screws are included. Hipshot's Grip-Lock Guitar Tuning Machines grip your strings for positive, accurate tuning. The new sleek design and ultra smooth 18:1 gear ratio give you a great combination of tuning stability, accuracy and good looks. The locking feature eliminates the need for multiple string wraps, and trem users no longer need a locking nut that deadens string sustain and all those annoying Allen screws and wrenches (added weight). Tired of winding strings? This is the answer. The Hipshot Grip-Lok is proven to hold strings tightly, allowing the guitar to stay in tune to improve playing enjoyment.