Features 【High quality material】The chuck holder is made of high quality metal with high hardness. It is suitable for long-term use and will not affect the accuracy of work. 【Longer Handle】Extended straight handle type with longer handle body. 【Application】It is suitable for deep hole machining and solves the need for extended machining depth. 【Improve work efficiency】It is used to reduce the use of extension tools, reduce processing costs and improve work efficiency, and all details of the product are carefully processed to ensure the stability and accuracy of the product. 【Safety Guarantee】All parts such as the diameter of the extension bar are precision ground to eliminate unbalance and increase the safety when cutting. Feature: The product is made of high quality metal and has high hardness. It is suitable for long-term use and will not affect the accuracy of the work. Extended straight shank type handle, with longer handle body. Suitable for deep hole processing, to solve extend depth of processing need. For reducing the using of extended cutting tool, reduce the cost of processing, increase efficiency Various details of the product are carefully handled to ensure the stability and accuracy of the product. The extension rod diameter and other part all through precision grinding, eliminate unbalance, to increase security when cutting. Specification: Model: C3/4 ER20A-50L Rod length: 50mm Chuck rod diameter: 3/4 Clamping range: 1-13mm Package list: 1 * Chuck Holder Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product. Package List