GOTOH SG360-07-MGT Locking Tuning Machines Sold in pre-configured sets..3Lx3R, 4Lx2R, 6L, 6R, 7L, 7R Small metal knobs 14:1 tuning ratio 24.5 degree offset mounting hole (the mounting hole is located 24.5 degrees from the vertical center of the string post) 6 and 7 inline sets have 2 non-adjustable height string posts 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 screws The GOTOH MG-T uses an intuitive rear mounted thumbwheel locking mechanism for fast string changes. We are selling the SG360-07-MGT in 6 pre-configured sets for your convenience. The 3Lx3R and 4Lx2R include all long(20mm) string posts. The 6 inline sets include 3 short (18.5mm) and 3 long (20mm) string posts. The 7 string inline sets include 3 short (18.5mm) and 4 long (20mm) string posts. These sets will fit most common headstock thicknesses. One exception we have run into is with ESP/LTD guitars with inline tuning machines. They will require 3 - 21.5mm Ex-Long and 3 - 20mm long posts. ESP/LTD owners with inline tuning machines should look for our other listing of individual tuning machines to configure a custom set. Locking tuning machines will use a shorter post than non-locking tuning machines. The string posts are on average about 1/16" (2-3mm) shorter so you will have the proper downward pressure at the nut and increased tuning stability.