Can someone tell me how to "ream" a prop from 1/4" to 10mm for a G-45? I have a MA-20x6 prop and I don't see any reams that go up to 10mm?

Tony Allen[]

Use a drill bit, the main thing is to keep the shaft hole centered.

Yes, a drill bit will work fine. The drill will usually center itself by following the existing hole.

You can buy a step reamer for larger props from many places such as B&B Specialties if your local hobby shop dosn't carry them... their web site is: http://www.bennettbuilt.com/. They will have the correct size you need for a reasonable price... it will result in a perfectly centered hole every time. Good luck.

Dan

...And clamp the prop down so it doesn't bind on the bit and start spinning.

Actually, you don't want to CLAMP the prop down.

You DO want to restrict it's movement, but you also want it to be able to wobble just a bit so that the drill can find it's way to center.

Actually, Tower Hobbies has a prop reamer that is 10-12mm manual reamer made by Fox. I have the 7-8-9mm Fox reamer and it works great.

Patriot

I bought a tapered machinist's reamer years ago at a tool store; it goes from 1/8" to 1/2" and cost me less than ten bucks.

That's how I do it, my prop reamer lasted about 4 props.

I use a drill bit and press to drill my holes.
Works great for me.

Thanks everyone! I'll try the drill method and see how it turns out.