Features Made of high quality cast aluminum, this spindle motor bracket clamp is strong and durable This motor bracket clamp would be a great replacement for CNC part Applied to various occasions, such as 3D printing, CNC engraving machines and so on The surface is well finished by sand blast which ensures a better smoothness Two inner diameter:52mm, 65mm that you can choose for different projects Package Includes: 1 x Bracket Clamp Features: Made of high quality cast aluminum, this spindle motor bracket clamp is strong and durable. The surface is well finished by sand blast which ensures a better smoothness. Two inner diameter:52mm, 65mm that you can choose for different projects. This motor bracket clamp would be a great replacement for CNC part. Applied to various occasions, such as 3D printing, CNC engraving machines and so on. Specifications:Inner Diameter: 52mm, 65mm (Optional) Material: Cast aluminum Quantity: 1 Package List