Collet Extension Block Drill Chuck Motor Shaft For Milling ToolsOOTDTY100% Brand New And High QualityFeatures:1. ER straight chuck extension chuck has a long handle, suitable for deep hole processing.2. This can reduce tool usage, reduce costs, and increase productivity3. Grinding accuracy can eliminate the outer diameter of the rod and the imbalance of the rod and improve the stability of cutting.4. Great workmanship, perfect replacement for an old or damaged one.5. It is a special shaft for the motor spindle, easy to install.6. Made of hard tool steel, the surface hardening process increases the hardness of the object, and it is not easy to deform after long-term use. It can replace an extension. Only milling machine chuck extension, other accessories shown in the picture are not includedSpecification:Material: Tool Steel Size: app.6.8x5x5cm/2.68x1.97x1.97inColor: As shown in the picturesOptional Style: A (Square Bushing Block), B (Hex Bushing Block)Quantity: 1 PcNote: Please allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Contents:1 x Milling Machine Handle Extension