Wright Tool 1650 12-Point Ratcheting Flare Nut Wrench, 5/8" 5/8-Inch size High carbon steel jaws with black conversion coat finish Heavy gauge, heat treated handles Stainless steel jaw springs and rivets for maximum strength Meets government specifications for NSN 5120-00-474-7227 5/8 inch High carbon steel jaws with black conversion coat finish Heavy gauge, heat treated handles Stainless steel jaw springs and rivets for maximum strength Meets government specifications for NSN 5120-00-474-7227