Needs review
Source: Epic Level Handbook

Description: You can craft magic arms and armor of epic power.

Prerequisites: Epic Level, Craft Magic Arms and Armor, Spellcraft (28 ranks), Knowledge (arcana) (28 ranks)

You can craft magic arms and armor which exceed the normal limits for such items (as stated in the Dungeon Master's Guide). For instance, you could craft a magic sword with an enhancement bonus of greater than +5, with a total effective enhancement bonus greater than +10, or that required prerequisite spells of higher than 9th level.