Check the listing for details. GOTOH SGV510Z-A01 Locking Tuning Machine Midsize-Large Knobs - Pre-Configured. Color: Black, Condition: New. Listed at 118.74 USD. Guitar and Bass tuning machines are sold by the side of the headstock they are mounted when viewing from the front. Left or Right side is not the same as left or right handed. Please remember this when placing your order.GOTOH SGV510Z-A01-MGT Locking Tuning Machines Sold in pre-configured sets - 3Lx3R, 4Lx2R Large metal knobs 1:21 tuning ratio 0 degree offset mounting hole (the mounting hole is located directly below the vertical center of the string post) ROCK-SOLID posts prevent the rocking of string post LUBRI-PLATE lubrication for smooth action and longer life NEW MAGNUM-TRAD Traditional style locking tuner with thumbwheel Includes bushings and mounting screwsThe SG510 MG-T is GOTOH's flagship super tuning machine with its 1:21 gear, precision fitted gears and high-quality finish. The.