Indexable Boring Tools DB Rough Boring Head ● Adjustable twin boring arm system for variety situation of rough boring. ● Reliable cartridge system provides high rigidity and efficiency. ● Step boring arm design, suitable for single bit boring, twin bit boring, and step boring. ● Side division easy to adjust tool extended without pre-setter. ● Boring diameter from 25mm to 204mm. Order No. LBK No. Boring RangeØD (mm) L(mm) C(mm) Insert Weight(kg) IDB2533C IDB2 25 ~ 33 45 24 CC..0602 0.15 IDB3242C CC..0602 IDB3 32 ~ 42 55 31 0.3 IDB3242T TC..1102 IDB4055C CC..09T3 IDB4055T IDB4 40 ~ 55 65 39 TC..16T3 0.5 IDB4055S SC..09T3 IDB5270C CC..09T3 IDB5270T IDB5 52 ~ 70 75 50 TC..16T3 1.0 IDB5270S SC..09T3 IDB6892C CC..1204 IDB6892T 68 ~ 92 85 64 TC..16T3 2.0 IDB6 IDB6892S SC..09T3 IDB90122C 90 ~ 122 100 80 CC..1204 2.9 IDB120164C 120 ~ 164 100 100 CC..1204 3.8 IDB120 IDB160204C 160 ~ 204 130 130 CC..1204 4.8 B097