Knife Sharpening & Care Guide

Knife Sharpening & Care Guide

A sharp knife is a safe knife. Keeping a clean, keen edge makes every cut easier and extends the life of your blade. This guide covers the basics of sharpening and maintenance — and the gear to get it done. Black Country Outdoor ships sharpening tools fast across the U.S.

How to sharpen a knife

  1. Pick your system: Controlled-angle kits make it foolproof; bench and diamond stones offer the most control.
  2. Set the angle: Most EDC and outdoor knives sharpen well at 15–20° per side.
  3. Work coarse to fine: Start with a coarser grit to set the edge, then refine with finer grits.
  4. Strop to finish: A few passes on a leather strop polishes the edge to a hair-splitting finish.

Care & maintenance tips

  • Wipe the blade dry after every use to prevent corrosion — especially with carbon steel.
  • Apply a light knife oil to the pivot and blade to keep action smooth and rust-free.
  • Periodically clean the pivot and lock with a knife cleaning kit.

Shop sharpening & maintenance gear

Need a new blade to sharpen? Browse our folding knives, fillet knives, and full survival gear range.

Frequently asked questions

What angle should I sharpen my knife at?
Most EDC and outdoor knives sharpen well at 15 to 20 degrees per side. A lower angle gives a keener but more delicate edge, while a higher angle is more durable for hard use. Controlled-angle kits make holding a consistent angle easy.

How do I sharpen a knife step by step?
Pick a sharpening system, set a consistent 15–20 degree angle, work from a coarse grit to set the edge, then refine with finer grits. Finish with a few passes on a leather strop to polish the edge to a hair-splitting finish.

How often should I oil and clean my knife?
Wipe the blade dry after every use to prevent corrosion, especially with carbon steel. Apply a light knife oil to the pivot and blade regularly to keep the action smooth and rust-free, and periodically clean the pivot and lock with a cleaning kit.

What is the difference between a whetstone and a diamond sharpener?
A whetstone uses an abrasive surface, often used with water or oil, to grind a new edge. A diamond sharpener uses industrial diamond particles for faster, more aggressive material removal and works well on very hard modern steels.