Features Extended Shank for Deep Processing: Straight extended shank allows for deep processing, meeting the need to extend the depth of processing, providing versatility for various applications. Precision Ground for Enhanced Safety: Extension rod diameter and other parts are precision ground, eliminating unbalance and increasing safety during cutting, ensuring precision and stability. High Rigidity and Strong Clamping Force: Nuts can be tightened directly, offering high rigidity and strong clamping force for secure tool holding and efficient performance. Cost and Time Efficient: Reduces the need for additional extension tools, lowering costs and improving efficiency, making it a cost-effective solution for machining needs. Versatile Models for Different Scenarios: Available in various models to meet the needs of different processing scenarios, providing flexibility and adaptability in machining operations. Specification: Item Type: Collet Chuck Holder Model: ER11M-150L Material: Chrome-molybdenum alloy steel Optional Chuck Rod Diameter: 8, 10, 12, 16, 20mm Applicable Chuck Model: ER11M Shank Length: Approx. 150mm / 5.9in Package List: 1 x Collet Chuck Holder Note: betweendiv>1. Due to manual measurement, there are slight errors, thank you for your understanding.between/div>betweendiv>2. The color of the product head is shipped randomly.between/div>betweendiv>3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.between/div>betweendiv>4. The nut color of this product will be sent randomly.between/div> Package List 1 x Collet Chuck Holder