16767B-15M 15-Pc Hex Key Wrench Set | Ball Point & Folding Kit

Why is S2 steel better for Hex Keys? S2 steel is significantly harder than Chrome Vanadium (Cr-V). It is designed to resist “rounding” at the tip, which is the most common failure point for hex tools. S2 tools stay sharp and maintain a perfect fit for a much longer period.

Can I use the ball end to break loose high-torque bolts? The ball end is designed for rapid rotation at an angle. For the initial “break” of a frozen or high-torque bolt, you should use the short end (Standard Hex) of the L-key to ensure maximum surface contact, then switch to the ball end.

Is the 16767B-15M set Metric or SAE? This modular set is curated to provide the most common sizes used in global maintenance (116767B-15M is typically the Metric primary set).

How do I maintain S2 steel tools? While S2 is highly resistant to wear, it should be wiped clean of moisture and oils after use. The Hans industrial finish provides excellent rust protection, but clean tools last a lifetime.