Standard Pack = 1 piece(s). External & Internal Grinding Kit Includes:; Tool post Grinder; 8 Insert Spindles: 5T-200, TX, TC, 5N-158, TN-3, TN-4, TN-5 & TN-6; 3 External grinding Wheels; 4 Mounted Wheels; 2 Internal grinding Wheels; Diamond Wheel dresse