cold steel

Noun

 * 1)  A sword, bayonet or similar weapon made of steel.
 * 2) * 1863 (attributed) Armistead, Bri. Gen. Lewis A. (commander of the only Confederate brigade that breached the Union line during Pickett's Charge, Battle of Gettysburg, July 3, 1863):
 * Give them the cold steel, boys!