Collet Chuck，BT30-ER20-70 Collet Chuck Tool Holder High Accuracy for CNC Lathe Milling Accessories 0.04-0.5 in

※※※【Extremely high-strength material】: The product is made of 40cr alloy steel, which can withstand high pressure and even explosion, which makes the product extremely safe in use ※※※【High precision and high performance】: In actual use and comparison, this tool shows high precision and excellent performance, which will make your work more efficient and is your best choice. ※※【Inexpensive】: With excellent price and high cost performance, this product is your ideal choice. ※※【Durable】: The tool holder of the chuck has a reasonable design, which will reduce tool damage during use, and has the characteristics of quality assurance and long service life. ※※【Applicable to】: This product can be used in various types of CNC milling machine products.