Feature:1. Three-jaw drill chuck is more stable and not easy to fall off.2. M10 shaft sleeve can withstand more torsion.3. Double flange bearings runs more smoothly.4. The synchronous wheel is locked tightly to lock the sliding block position.5. High accuracy,works more fluently and more stable.Specification:Item Type:Unpowered SpindleDrill Chuck: B12Bushing: M10Connecting Rod: M10Accuracy: 0.005mmMatching Bearing: F6800ZSynchronous Wheel: XL20 ToothPackage List:1 x Drill Clamp1 x Drill Clamp Key2 x Bearing1 x Black Washer1 x Slide Block1 x Synchronizing Wheel1 x Hex Wrench1 x Connecting Rod2 x Large Wrench2 x Black Screw1 x Shaft Sleeve(2 x Chuck Sheet / 1 x Sleeve)Note: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.