Feature:1. The straight long rod is suitable for deep processing, which solves the need to extend the processing depth 2. The rod has high efficiency which reduce the use of extension tool 3. High accuracy grinding of the rod eliminate imbalances and improve safety during cutting 4. Made of high quality material, durable and long service life 5. Professional design and reasonable structure, easy to install and remove Specification:Item Type: Collet Chuck Extension RodModel: SL25-80L Optional Style: ER20A, ER32 Package List:1 x Collet Chuck Extension Rod. note: the new type and the old type of this product will be sent randomly, please make sure you can accept it before order.