Feature:1. The spindle has high accuracy ground tapered holes for easy operation.2. With ER11 fixture, stable and not easy to loose3. The front end of the spindle can be shaken slightly, which makes it easy to retract the tool when drilling4. High quality material can make sure the durability and stability of the product5. Widely used in engraving machine drillingSpec:Item Type: Engraving Machine SpindleDiameter: Approx. 42mm / 1.7inFixture: ER11-3.175Number and Model of Bearings: 2pcs 7002, angular contact bearingsUses: Widely used in engraving machine drillingPackage List:1 x Engraving Machine Spindle1 x Fixed Base