TheZero Tolerance ZT 0308BLKTS is a large EDC knife, featuring a ball-bearing CPM-20CV steel blade, a proven frame-lock, and a convenient flipper unfolding system. If you are looking for a sturdy folding knife that is not afraid of hard work - the ZT 0308BLKTS will be a hit at the proverbial jackpot. Premium steel The 95mm long head was made of CPM-S20V powder steel hardened to 60-62 HRC. CPM-S20V is a "super-steel" that corresponds in parameters to Bohler's M390 stainless steel. Thanks to its high chromium content and high amount of vanadium carbides, it is characterized by exceptionally good corrosion and wear resistance, and very long retention of sharpness. When choosing a knife made of such steel, it is worth getting a diamond sharpener, as sharpening with a standard ceramic whetstone can be very labor-intensive and inefficient. The wide head with a utilitarian drop-point profile has a matte stonewashed finish, which effectively masks the blade's scratches and abrasions that occur during use. Thanks to the strong tip and flat grind, the blade has excellent penetration and very good cutting properties. Thethickness of the blade at its widest point is as much as 4 mm, which guarantees a very high durability of the blade and allows it to be used for demanding operations. On the back of the blade are applied transverse cutters, which create a very stable place of support for the thumb or index finger. For the first time in the history of ZT, the blade was finished with the BlackWash oxidation technique, which was combined with the classic "tiger stripe" pattern.