Drill Arbor Adapter, Converts Drill to Grinder, High Speed, Firmly Fix Grinding Wheel, Stainless Steel, Carbon Steel, Easy Installation, Works with Various Sizes (8.3mm handle [Secure and Versatile] Includes 2 washers for securely fixing grinding wheels of different sizes, making it truly versatile. [Simple Installation] The deep and clear thread design allows for easy and stable installation by simply screwing on the extension rod. [Stable and Efficient] Works with high rational speed, ensuring stable and efficient grinding with the grinding wheel connecting rod. Spec: Item Type: Drill Arbor Adapter Material: Stainless Steel + Carbon Steel Function: Electric Drill Conversion Rod Package List: 1 x Drill Arbor Adapter 1 x Nut 2 x Washer