OVERVIEW Stop using kit-included allen keys or hardware store tools and equip yourself with our Titanium-Nitride wrench set. This six piece Allen-head wrench set features tips made from HSS (High Speed Steel) blanks. The blanks are precision ground to size, and then true to their namesake, are coated in Titanium Nitride (TN-coated) for strength and durability. The 18mm O.D. handles are made from anodized aluminum and are hollowed out for less weight. This special set features chrome handles that are laser etched with the measurement labels for easy and quick identification. If you are used to our color coding system for wrench sizing, the handles in this set feature color coded handle caps that match our other tool sets.