The Holder is black oxidized smooth surface and Tool Hardness, Turning inserts exquisite workmanship, High Strength, High Toughness, Stable and Durable. Toolly 3/8 Inch Shank 7 Pieces Indexable Carbide Turning Tool Set MCLNR1616H12 Lathe Tool Holder MCMNN1616H12-80 MCMNN2020K12-80 MCMNN2525M12-80 External Turning Tool Holder CNMG Carbide Inserts MCMNN Lathe Cutting Tools Set - 1420 Right Hand Indexable Tool Holder 10pcs Cnmg Tungsten Carbide Insert Cnc Lathe Carbide Turning Inserts... Package : 1pcs 5/8 MCLNR1616H12 Holder 10pcs CNMG120404 (CNMG 431) Carbide Inserts 1pcs Wrench The 5/8" Lathe Tool Holder MCLNR1616H12 is designed to work with indexable carbide inserts, allowing for quick tool changes and enhanced cutting performance 5/8 Lathe Tool Holder MCLNR1616H12 Indexable Carbide Turning Tool Holder with 10pcs CNMG120404 (CNMG 431) Carbide Inserts Lathe Cutting Tool (MCLNR1616H12 + 10pcs CNMG 431)