CRKT CEO runs a 3.11″ clip point blade in 8Cr13MoV; Kershaw Bel Air 6105 runs 3.1″ of reverse tanto in CPM MagnaCut. The CRKT CEO is the lighter of the two by 0.80 oz.
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CRKT CEO · Clip Point
3.11″ blade · 0.09″ spine · 2.1 oz · ~0.57″ tall
Kershaw Bel Air 6105 · Reverse Tanto
3.1″ blade · 0.09″ spine · 2.9 oz · ~0.73″ tall (derived) · family outline
Spine thickness, same scale
0.09″
0.09″
Length and spine thickness drawn to true scale from published specs. Outlines traced from makers' photos, except where marked as the shape family's.
The current answer to “why must I choose?” — near-tool-steel toughness with better corrosion resistance than S30V. The default recommendation for a hunting fixed blade that lives in a wet sheath.