SRD:Deep Impact

Deep Impact [Psionic]
You can strike your foe with a melee weapon as if making a touch attack.

Prerequisite
Str 13, Psionic Weapon, base attack bonus +5.

Benefit
To use this feat, you must expend your psionic focus. You can resolve your attack with a melee weapon as a touch attack. You must decide whether or not to use this feat prior to making an attack. If your attack misses, you still expend your psionic focus.