Sigma Select II Water Stones

What are Sigma sharpening stones known for?
Sigma stones are premium Japanese water stones known for their fast cutting speed, high durability, and effectiveness on modern, high-hardness steels like ZDP-189, S90V, and R2. They are popular with serious sharpeners who want stones that can handle even the toughest blade steels efficiently.

Do Sigma stones need to be soaked before use?
Most Sigma stones are splash-and-go, especially the higher grit stones. Some coarser Sigma Power Select II stones may benefit from a brief soak (2–3 minutes), but always refer to the manufacturer's recommendations for best results.

Are Sigma stones good for sharpening high-end knives and steels?
Yes, Sigma stones are particularly effective for sharpening high-end, high-HRC steels that are often challenging for traditional water stones. Their abrasive structure cuts hard steels quickly without loading up or wearing out easily, making them ideal for professional chefs, knife makers, and serious hobbyists.

What grit Sigma stone should I start with for everyday sharpening?
For daily knife maintenance, a Sigma 1000 or 1200 grit stone is a great starting point. Follow with a 3000–6000 grit for refining the edge, and finish with a 10,000+ grit Sigma Hard Black if you want a mirror polish.

How do you maintain Sigma sharpening stones?
Keep the stone flat by using a diamond flattening plate when needed. After sharpening, rinse thoroughly with water and allow the stone to dry completely before storing. Avoid soaking for long periods to preserve the stone’s bonding structure.