Features:1. ER straight extension rod, long shaft, suitable for deep hole machining.2. Straight-type handle body for holding small drilling, milling tools.3. You can reduce the use of longer tools, which can reduce costs and improve efficiency.4. Stable diameter, other parts have been accurate ground to eliminate imbalance.5. Durable, high accurate, tighten the nut straight, high rigidity, strong clamping.6. Mainly used for various types of drilling and milling machine, spindle Morse taper machine.Specification:Condition: 100% Brand NewItem Type: Collet Chuck HolderMaterial: Carbon SteelModel: MT4 ER32 M16Shank Type: MT4Collet Type: ER32Traction Line: M16Wrench: Approx. 22cm / 8.7inPackage List:1 * Collet Chuck Holder1 * WrenchNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard..