Happymodel4 bladed 31mm props are an originalprop design for the Inductrixand InductrixFPV these are well-balanced props with a slightly less aggressivepitch than eachineprops.

The benefitsof less pitch, these props can help level your flight out if you’re using powerful motors like Awesome Sauce or Ludacris Motors, they will also help with more detailed flying in trees with Special Sauce or Ultra Sauce.

Shaft hole size .75mm

With the .95mm Drill Bit Happymodel 31mm props will fit snugly on a brushless as well.