Fine Boring Heads with Balancing Rings 2 µm 2 µm Direct Diametric Adjustment BHF MB50-32x60 BL 1 Body ITS BORE ø2.5-12 2 Tool Slide 3 Expansion Pin ! 4 Graduated Dial 5 Slide Locking Screw 6 Coolant Nozzle 7 Boring Bar Locking Screws 8 Balancing Rings 60 36 28 6 3 1 2 21 12 24 12.5 330 0.002 0 1 2 300 50 270 8 9 0 6 7 1 5 4 3 2 240 0 1 2 A-A 210 BHF MB50-32x60 BL 7 Ø2.5-4 IHAXF 2.5-4/8 Ø4-6 IHAXF 4-6/8 Ø6- 8 IHAXF 6-8/8 Ø8-10 IHAXF 8-10/8 Ø10-12 IHAXF 10-12/8 BHF MB50-50x68 BL 8 4 5 2 ø6-22 68.5 8 63 50 50 42 3 1 35 6 8 28 0.002 21 1 2 330 0 300 50 270 9 7 8 0 6 1 5 240 4 3 2 0 1 2 210 BHF MB50-50x68 BL 9 4 5 2 7 Ø6-8 IHAXF 6-8/16 Ø8-10 IHAXF 8-10/16 Ø10-12 IHAXF 10-12/16 Ø12-14 IHAXF 12-14/16 Ø14-16 IHAXF 14-16/16 Ø16-18 IHAXF 16-18/16 Ø18-22 IHAXF 18-22/16 1 Body 2 Tool Slide 3 Expansion Pin ! 4 Graduated Dial 5 Slide Locking Screw 6 Coolant Nozzle 7 Boring Bar Locking Screws 8 Oiling Nipple ▲ ! See page 820 9 Balancing Rings 776 776 ISCAR ISCAR