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I have been given a Turnigy DST-1200 motor and want to source a propeller. But the 3mm shaft has a 6mm hub with two flat sides. I have not seen a compatible propeller. Or does the propeller sit in front of this hub on the 3mm shaft only?
You can use a prop saver to a bell type motor. This one should fit: SKU:OR019-00501-3 together with a 7 inches or 8 inches propeller: SKU:TGS7x6E. You could also check this video on how to install it: