Features Secure Thread Connection: The boring head shank boasts a 1 1/2 18UNF thread for a strong and dependable attachment, enhancing the stability of your boring head during machining tasks. Robust Material Construction: Crafted from high carbon steel, the shank provides superior durability and exceptional performance, guaranteeing precise boring tasks without frequent replacements. Exceptional Precision: Engineered for excellence, the boring head shank offers a remarkable ≤0.005mm accuracy, making it ideal for achieving exacting results in milling operations. Simplified Setup: Designed with user convenience in mind, the boring head shank promises an effortless installation process, enabling prompt and easy setup on milling machinery. Multipurpose Machining Tool: This versatile boring tool shank is an essential component for a wide range of milling applications, including inner hole surfacing, end face boring and hole cutting. Specification:Item Type: Boring Head Shank Material: High Carbon Steel Thread: 1 1/2 18UNF Accuracy: ≤0.005mm Type: Milling Tool Package List:1 x Boring Head Shank1 x Storage Box Package List 1 x Boring Head Shank 1 x Storage Box