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

Yes, you can sharpen a double-edge OTF blade at home as a light touch-up. Learn the safest method, angle matching, burr control, function checks, and when to st

Most OTF knives sharpen best at 18 to 20 degrees per side. Use 20 DPS for durability, 18 DPS as the default, and 17 DPS only for thin single-edge OTFs used main

Yes—clean an OTF knife every 2 to 4 weeks for frequent carry, every 2 to 3 months for occasional carry, and immediately after sand, moisture, or heavy lint expo

Yes, you can sharpen an OTF knife yourself if it is only dull and still deploys and retracts normally. Learn when home sharpening is safe, what tools to use, an

Most OTF knives need sharpening when cutting performance drops, not by date. See practical touch-up ranges, dullness vs misfire signs, and OTF-specific sharpeni

Yes. Excess oil can slow an OTF knife, make the switch feel gummy, and contribute to misfires. Learn how to tell over-oiling from a mechanical fault and what to

Use 1–2 drops of light, non-gumming synthetic knife oil on an OTF knife. Learn which oil types work, what to avoid, and how to clean and lubricate the mechanism

Learn how to lubricate an OTF knife safely: what oil to use, where to apply it, step-by-step instructions, and common mistakes to avoid.

Learn how to clean an OTF knife safely with a clear step-by-step method, compatible cleaner and lubricant examples, what to avoid, and when to stop and seek ser