Yes, you can replace some OTF screws if the new screw exactly matches the original in size, thread, length, and head style. Exterior body and clip screws are us

You need an exact-fit precision driver matched to the knife’s screws, eye protection, a parts tray or magnetic mat, bright lighting, and a clean non-marring wor

Usually no. Do not disassemble an OTF knife unless external cleaning fails, hardware is damaged, or internal damage is likely. Learn the safest next step.

Usually no. DIY OTF disassembly is reasonable only if the knife is out of support, you know that exact model, have the right tools, and accept the risk of lost

Yes—most OTF knives are rust resistant, but not rust proof. Learn which OTF parts rust first, how blade steel and finish affect corrosion, warning signs to watc

Best overall: a well-applied DLC or high-quality PVD coating on corrosion-resistant stainless steel. Best uncoated option: stonewashed stainless. Bead-blast is

Learn how to prevent rust on an OTF knife with a simple 5-step routine, exact actions after rain or sweat, and OTF-specific storage and lubrication tips.

Rust can develop inside an OTF knife, especially around the spring, rails, screws, and blade channel. Learn the signs, exceptions, inspection steps, and what bu

Sharpen a serrated OTF blade with a tapered rod from the beveled side only, using light pressure and keeping grit out of the mechanism. Learn when DIY is safe,

Yes—sharpen a single-edge tanto OTF by treating the main edge and front edge as two separate straight sections, matching the factory bevel, and cleaning away bu