Hex key wrench (CR-V), allen key 1 Stainless steel wrench 2 Quick delivery 3 Various materials 1. We supply the ... , copper, brass, bronze, etc.Surface treatment: zinc/nickel/chrome plating, hot galvanized, painting, PVC powder coating, etc or according to your ... mm tolerance will be controlled. 9PC ball point inside hex key wrench (extra long arm) (CR-V), allen ...