Wrench Set Ti-Nitride Hex (6pcs). These wrenches are color coded, 6 sizes are 0.05" 1/16" 3/32" 5/64" 2.5mm and 1.5mm. Sturdy and convenient to use, our tips have a high degree of tolerance to securely lock your screw in its place. No more slipping or stripping the screw head.