I just bought some pack of plastic ones from Shucks that had like 5 or 6 different sizes for $12, it was one of these packages that was just tagboard with molded plastic stapled to it so i used the tool i needed then put it in the dishwasher put the pack back together and got my 12 bucks back. i think its a ripoff that you have to buy a special tool for this kind of thing. by the way the plastic one worked fine for me.