This is a set of fine quality turning tool holder, perfect profiling bar for semi-finishing and finish operations. Fine toughness and hardness, long service life. Fine low temperature impact toughness, improved the surface gloss of the cutting pieces. Features: Fine toughness and high hardness, high clamping strength, high impact resistance, long service life. It can reduce the tool grinding cost and improve the cutting efficiency. Fine low temperature impact toughness, improved the surface gloss of the cutting pieces. Fine grip strength, impact resistance and strong, clear speed advantage in cutting off a large margin and processing. Practical and a variety of processing environments, even in very dirty environments. Quick and easy clamping and replacement mode, only need one wrench to complete the replacement toolblade and shim. Note: To avoids injury do not touching shape edge. Use safely precaution such as guards and eye-protection before using the tool. Exchange a tool when it occurs problems such as a noise-vibration and a flame. Specifications: Name: Turning Tool Set Material: 40CR Model:S12M-SCLCR06/SER1212H16/SCL1212H06/ MGEHR1212-2/SNR0012M11/SDNCN1212H07/SDJCR1212H07 Wrench: T-8 Model: Shank Diameter(mm)/Length(mm) S12M-SCLCR06: 12(mm)/150(mm) SNR0012M11: 12(mm)/150(mm) SER1212H16: 12(mm)/100(mm) SCL1212H06: 12(mm)/100(mm) MGEHR1212-2: 12(mm)/100(mm) SDNCN1212H07: 12(mm)/100(mm) SDJCR1212H07: 12(mm)/98(mm) Item weight: 944g / 2.08lb Package size: 132 * 151 * 43mm / 5.20 * 5.94 * 1.69in Package weight: 1016g / 2.24lb Packing List: 7 * Turning Tool Holders 7 * Small Wrench