Well Hi Guys, From someone who has made just 1 or 2 poppers in my day. The best bit in my opinion is a multy fluted countersink bit produced by W Fuller Company. But since those are hard to find. The rounded off spade bid will work fine for a whilde befor needing to be sharpened. Don't touch the center point, round down the two sided to the desired angle, then put a slight angle away from the cut (The flat edge is the cutting side. So hold the point of the bit to the right side of the wheel and place it in a slight upward angle and follow the rounded edge). If you like, call me 401-762-1884 I'll give you directions to my house and I'll prepare the bit for you and test it here. (no charge). As far as that bit link that was posted, please don't waste your time with it. You will get no where fast.
Good Luck feel free to call.
Armand
p.s. fishweewee's idea is alright too. buy one of mine
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