For foot blade thickness of 8mm. Fixing of the blades by smooth axis rectified steel and circlip.
The prop hub is attached to the motor shaft (Ø5mm) by 2 M3 head socket screws
Distance between blades pin = 20mm
Dualsky Advanced Power Systems produces high quality RC accessories and components. Since 2004, Dualsky has concentrated on Brushless Outrunner Motors, Electronic Speed Controllers, and long lasting LiPo Battery Packs. Their products have been known to produce competition performance with little cost.