These custom made aluminum extrusions are perfect for you Multi-Rotor DIY projects, no more borrowing moms shower curtain rods...They have internal rifling (ribbing) added to remain ultra-light but have increased strength and anti-vibration characteristics as well as anodized for various color options for orientation and Bling.
These are pre-drilled for motor/landing gear and frame mounting and are a direct replacement for the x525 and x600
Diameter:12.8 x 12.8mm (. 5inch)
Holes aren't centered and you can tell the tooling had gotten dull by the time it got to a few of the holes. Many of them are pressed in/out depending on the side the drill entered. But for the price, they do the job adequately and I can't complain too much.Very cheap, light and ressistant. The best option for a DIY quad.
Thank you HK.