Kershaw Leek 1660 runs a 3″ modified wharncliffe blade in Sandvik 14C28N; Kershaw Conduit 1407 runs 2.9″ of spear point in 8Cr13MoV. The Kershaw Conduit 1407 is the lighter of the two by 0.40 oz.
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Kershaw Leek 1660 · Modified Wharncliffe
3″ blade · 0.09″ spine · 3 oz · ~0.88″ tall
Kershaw Conduit 1407 · Spear Point
2.9″ blade · 0.11″ spine · 2.6 oz · ~0.65″ tall (derived) · family outline
Spine thickness, same scale
0.09″
0.11″
Length and spine thickness drawn to true scale from published specs. Outlines traced from makers' photos, except where marked as the shape family's.