Most of our tools are designed around the 1/16th and 5/64th mandrels, with many having the option to modify to work well with a 3/32nd mandrel. For more mandrel information and advice you can check out our page devoted to such things. Which is also where you can find out why 5/64 is Amy's favorite size to work with!
To simplify things for you, we have made both 1/16th and 5/64 mandrels available in bundles of 12. You can select your preferred size from the drop down menu. Both are made of high quality stainless steel.