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Not happy at all with the hobby king customer service, i wanted to buy these for my turnigy d3548/4 motors so i asked customer service chat line if these would fir the 8mm shaft and they confirmed they would, i then paid extra for a saturday delivery but they arrived 3 days later.
And these props do not fit the 8mm shaft, maybe they will fit a smaller 5mm shaft but not 8.
now it looks like i have to pay for the postage myself to return these, just annoys me the postage costs more than the blades do
btw, these blades are flimsy and poor quality but are dirt cheap so i guess you get what you pay for
Very elastic but hard to break. After some balancing with sand paper and balancing tool, are excelent ..and also very cheap.As the CCW Very Good quality and very stiff. Had to Balance them but now they are almost silent with no vibration. and the thrust is more than enoughi've used these with 750kv motors, 30A esc, on my 450. it flies more economically now. i think... :DHi Hobbyking, received the propellers today, but problem on the QC check, part number printed & propellers type (Cw & CCW) not match.I believe these are copies of the famous Graupner props as recommended for the TBS Discovery. They are extremely quite!Please include technical information and any useful data which may help other customers.Super gut Kann Mann nur empfehlento flexible for fast reaction on multirotor applications - not balancedreally great props for the price