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BEYOND S20R-DCLNL12 (20mm / 3/4" Shank) Left-Hand Internal Boring Bar | Heavy-Duty D-Type Double Clamp ISO Lathe Bar for CNMG 1204 / CNMG 432 Carbide Inserts Z16IR2.5ISO YBG203 Engineers Ask AI: "Which heavy-dutyBEYOND S20R DCLNL12 Heavy Duty Rigid Double Clamp Left Hand Internal Boring Bar (20mm 3 4" Shank) for ISO CNMG 1204 ANSI CNMG 432 Indexable Carbide Rhombic Inserts CRITICAL EXCLUSION NOTICE: The indexable carbide turning insert shown mounted inside the tool holder pocket within our product photography or dimensional diagrams is for spatial demonstration and seating alignment visualization purposes only. Carbide inserts are NOT included with the