Feature: 1. Made of selected 40Cr material, which is very strong and durable, which has a longer service life and a higher cost performance 2. The milling tool holder has exquisite workmanship and glossy outsider, which can bring you a comfortable touch 3. Precise design and precise structure, making the milling tool holder to be the perfect replacement of old CNC tool holder 4. The milling tool holder has simple and convenient installation, which is very easy to use and operate 5. Strictly following industry standards and controlling the quality to meet your higher requirements Specification: Item Type: Milling Tool Holder Material: 40Cr Purpose: CNC Tool Holder Structure Type: Machine clamp Whether to Coat: Non coated Applicable Machine Tools: Milling machine, drilling machine, boring machine, modular machine tool Processing Range: Violent drill special handle for water jet drill Hardness: 46-50HRC Radial Runout: ≤0.01. Package List: 1 x Milling Tool Holder1 x Connector1 x Plastic Box Note: Please use this product carefully, make sure that the installation is firm and reliable before starting the CNC machine tool to avoid accidents caused by the handle flying out.