Zero Tolerance 0203 DuraLock Folding Knife

Portions of the following content are served by a 3rd party. If you have accessibility or usability difficulties related to this 3rd party content, please call 800.338.6799.

Built for serious work, the Zero Tolerance 0203 is a heavy-duty folding knife ready to take on demanding tasks. Its thick CPM-M4 blade delivers outstanding edge retention and toughness, protected by a durable black PVD coating. The 3D-machined G10 handle provides a secure grip in any condition, while the reinforced steel liners and solid pivot bolt add unmatched strength and durability.
3 results
play quickflick video
Zero Tolerance Model 0203BLKTS DuraLock Folding Knife 4" CPM-M4 Tiger Stripe Drop Point Blade, …Retail price: $390.00, our price: $312.00
$390.00
$312.00
Save 20%
rated 5 stars out of 5 (1)
ADD
Pay Plan
In Stock
Favorite
Free
Quality
Zero Tolerance FSS (Factory Series Special) 0203GRM390 DuraLock Folding Knife 4" M390 Working F…Retail price: $400.00, our price: $320.00
$400.00
$320.00
Save 20%
rated 0 stars out of 5
ADD
Pay Plan
In Stock
Favorite
New
Free
Quality
play quickflick video
Zero Tolerance Model 0203 DuraLock Folding Knife 4" CPM-M4 Black PVD Drop Point Blade, OD Green…Retail price: $380.00, our price: $304.00
$380.00
$304.00
Save 20%
rated 5 stars out of 5 (5)
ADD
Favorite
Note
Free
Quality

Your Zero Tolerance 0203 DuraLock Folding Knife Questions Answered

This series represents Zero Tolerance's first foray into crossbar locks, combining the heavy-duty heritage of the brand with the ambidextrous DuraLock system. Built for serious work, these knives feature a robust 4-inch CPM-M4 blade and a washer-based pivot for long-term reliability in harsh conditions.

What kind of locking mechanism does the 0203 use?
The Zero Tolerance 0203 series uses the DuraLock, a crossbar locking mechanism that allows for easy, ambidextrous opening and closing. This lock is integrated into full thick steel liners, providing the strength and security required for a hard-use tactical folder.
How does CPM-M4 steel perform on the Zero Tolerance 0203?
CPM-M4 is a premium powder metallurgy tool steel that offers exceptional toughness and superior edge retention, though it is not stainless. To protect the blade, the Zero Tolerance 0203 series features a black PVD coating that helps prevent corrosion during daily use. You can explore how this compares to other options in our Best Knife Steel Guide.
Why does this knife use washers instead of ball bearings?
Zero Tolerance equipped the 0203 with washers to ensure the pivot remains stable and functional in environments filled with dirt, dust, or grime. While ball bearings can feel faster, the washer system provides a smooth, buttery action that is less prone to fouling during heavy-duty outdoor or tactical tasks.
Is the pocket clip on the 0203 reversible?
Yes, the deep-carry pocket clip on the Zero Tolerance 0203 is reversible for left- or right-hand carry. It utilizes a standard three-hole mounting pattern, which makes it compatible with many aftermarket clip options if you choose to customize the knife later.
Is the Zero Tolerance 0203 suitable for tactical use?
The Zero Tolerance 0203 is specifically designed for tactical and heavy-duty needs, featuring a large 4-inch blade and a build quality that competes with knives like the Benchmade Adamus. Despite its substantial 6.6-ounce weight, the knife is well-balanced and features skeletonized liners to prevent it from feeling overly bulky in the hand.