This weekend we’re going to take a look at a couple of collaborations between Ernest Emerson and Zero Tolerance, the 0620 and the 0630. Emerson’s functional, utilitarian design paired with ZT’s top-notch American craftsmanship has produced a couple of admirably rugged folding knives.

Aesthetically speaking, both models look exactly like what you’d expect from an Emerson design. The G10 face scale on the handle and the patented wave opening feature on the blade instantly scream Emerson. These are precisely the kind of stout, sturdy workhorse folders Emerson is known for.

The first collaboration, the 0620, sports a razor-sharp tanto blade made from Elmax stainless steel with a black powder coating. Handle is large and comfortable, with the G10 scale and a long stretch of jimping providing really secure grip. Back frame is titanium with a bead-blast finish, and the sturdy framelock keeps the blade safely locked in place. The 0620 also comes in a variant with carbon fiber face scales and a two-tone stonewash/satin blade, made from Carpenter steel.

The next collaboration, the 0630, is functionally identical to the 0620, with the same titanium handle construction, G10 face scale, and the same 3.6″ blade length. The only difference is the S35VN stainless steel blade in the clip point style, enabling better slicing performance.

Deployment on all three is handled by either the ambidextrous thumb disc or the wave feature. The benefit of ZT’s American construction is a much smoother action than is typical with an Emerson. All three models have a large, deep carry pocket clip that allows for left or right side, tip-up carry.

Emerson and ZT are two of the finest knife makers in the game right now, and the 0620 and 0630 have admirably pulled together the best traits of each. To learn more about these knives, click here. To see our entire inventory, visit