Feature 1Straight extended shank, long shank fit for deep processing, resolve the needs of to extend the depth of processing. 2Extension rod diameter and the other parts are precision ground to eliminate unbalance, increase safety when cutting. 3The nuts can be tightened directly, with high rigidity and strong clamping force. 4It can reduce the use of extension tools, which can reduce costs and improve efficiency. 5Available models to meet the needs of different processing scenarios.Item Type: Collet Chuck Holder Model: ER11M-150LMaterial: Chrome-molybdenum alloy steelOptional Chuck Rod Diameter: 8, 10, 12, 16, 20mmApplicable Chuck Model: ER11MShank Length: Approx. 150mm / 5.9in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Collet Chuck HolderNote1. Due to manual measurement, there are slight errors, thank you for your understanding.2. The color of the product head is shipped randomly.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.4. The nut color of this product will be sent randomly.