Modular Rough Boring Bar for dia 253mm GPL 190 mm, Modular Finish Boring bar for dia 254 mm GPL 190mm, Modular Rough Boring Bar for dia 2575 mm GPL 190mm, Modular Finish Boring bar for dia 258 mm GPL190mm, U Drill Assy of Dia 21 mm with LD 4, U Drill Assy of Dia 22 mm with LD 4, U Drill Assy of Dia 25 mm with LD 4, U Drill Assy of Dia 30 mm with LD 4