DEEP DRILLING - BTA SYSTEM USER GUIDE Ø38.00-106.99 mm Ø169.00-232.99 mm Filler Filler Protector Protector SubGuide pad Protector Sub Guide pad Protector Guide pad Inner Inner Peripheral Peripheral Inner Central Central Part positions may vary depending on the drill size. Part positions may vary depending on the drill size. Ø107.00-168.99 mm Ø233.00-291.99 mm Filler Filler Protector Protector Sub Protector Guide pad Sub Guide pad Guide pad Guide pad Guide pad Inner Inner Peripheral Peripheral Inner Central Inner Central Part positions may vary depending on the drill size. Part positions may vary depending on the drill size. *For more information regarding the filler please see page 218 217