I took the Avet wrench/screwdriver that comes with each Avet reel and made screwdrivers that do not strip out the reel nuts. They are only as wide as the reel nut and short. They come in two styles: blunt and with two pointed ends to reach deep. That one also excels at Shimano reel nuts.
(http://i975.photobucket.com/albums/ae238/mlmayo/Avet%20Screwdriver/1FFAF636-E4AE-40F3-B2F6-A0EA5DC84618_zpsu5f3ezxz.jpg)
If you want your reel clamp stupid tight, these are not for you. They work and tighten the nuts very well.
Contact me at: MLMAYO2@VERIZON.NET