Assembly instructions Montageanleitung Assembly instructions Montageanleitungen Rough boring head Schruppkopf ø23-153 synchronous 1 3 adjustment 2 7 6 single adjustment torque / revolution diameter ad Rough boring Nm max. head A rpm D20 / Ø 23-31 2.4 12.000 D25 / Ø 31-40 5 10.000 D32 / Ø 40-51 9 8.000 D42 / Ø 51-67 20 6.500 D55 / Ø 67-87 35 5.000 D72 / Ø 87-116 35 4.000 D94 / Ø 116 - 153 35 3.000 54 +6 +7