I plan to use a g15 810kv with a 10x8.25 four blade prop, and I'm having trouble finding an adapter to use. The problem is that the prop won't take an 8mm hole, so the standard adapters are out, and my e-flite adapters have a step that prevents me from using anything but apc props in them, because of how the apc widens at the bottom. So, basically I'm looking for a 5mm adapter, without the step, and a known diameter of less than 8mm. I'd be fine using the g15 adapter, I'm just not sure of it has a step or not, and of its diameter.
Thanks for your help!

I would be very wary of using such a flimsy prop on something as powerful as a G15!