52mm Spindle Clamp Motor Bracket, Aluminum Bracket Clamp with 4 Screws for CNC Engraving Machine Motor Mounting Bracket Inner diameter: 52MM Suitable for a certain brand woodworking pruning machine and CNC router. Surface treatment, good smoothness. [Exquisite craftsmanship] Made of high-quality aluminum. Not easy to rust, wear resistance, and durability. Easy to use: The main axis motor is equipped with an installation screw. You can directly assemble. Colour: Silver Material: Aluminum Package Contents: 1 x CNC motor clamp 4 x screws Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.