Description:9pcs 12mm Shank Lathe Boring Bar Turning Tool Holder Set With Carbide InsertsSpecifications:Product NameLathe Boring Bar Turning ToolMaterial42CrColorMulticolorQuantity1 Set × Turning ToolModelShank Diameter(mm)Length(mm)Insert(mm)S12M-SCLCR0912150CCMT09T304SNR0012M111215011 IRSDJCR1212H..