How to Sharpen Ultra-Hard Steels on a Wicked Edge
Sharpening ultra-hard steels—such as high-carbon or Japanese super steels—can seem intimidating, but with the right technique and the proper gear, it's well within reach using a Wicked Edge precision knife sharpener. These steels are tough, wear-resistant, and hold a long-lasting edge—but they also require a careful approach to avoid damage.
Recommended Stones for Ultra-Hard Steels
Wicked Edge systems are fully capable of handling ultra-hard blades, but it’s important to choose the right abrasives. Here's what we recommend:
- Start with a fine grit. Use 1000 Grit Diamond Stones or higher to avoid chipping the hard steel. Coarser stones may be too aggressive and can cause microfractures along the edge.
- Prefer well broken-in stones. A new set of stones may be too rough. Stones that have been used for 10–20 knives offer better control and a smoother finish.
- Japanese steels shine with 1500–2200 grit. If you're working with steels like VG-10, SG2, or ZDP-189, the 1500/2200 Grit Diamond Stone Pack provides a clean, refined polish.
Sharpening Tips for Ultra-Hard Blades
- Use light pressure. Let the diamonds do the work. Pressing too hard can damage the edge or prematurely wear your stones.
- Stay consistent with your angle setting. Ultra-hard steels don’t respond well to erratic sharpening. Make sure your angle setting is precise and repeatable across both sides of the bevel.
- Take your time. These steels are wear-resistant by design, so don’t rush the process. A few extra minutes now will pay off with a sharper, longer-lasting edge.
Video Guide
Watch our step-by-step video on sharpening ultra-hard steels using a Wicked Edge sharpener:
How to Sharpen Ultra-Hard Steels on a Wicked Edge (YouTube)
Learn more about our Wicked Edge precision sharpeners here.
