SHARPAL Diamond Sharpening Stone 8 x 3 in. — Double-Sided 325/1200 Grit, Mirror-Flat Steel Back

This compact, heavy-duty diamond stone pairs industrial monocrystalline diamonds electroplated on a thick stainless-steel backing with a mirror-flat surface treatment to keep an even contact patch across the entire abrasive. It’s designed to cut faster than traditional oil or water stones and to stay flat longer, letting you set and refine edges on a wide range of cutting tools without oil or water.

How quickly will this diamond stone restore a dull edge?

The 325-grit side aggressively removes metal to re-establish profiles and repair nicks, while the 1200-grit side refines and polishes the bevel. Because diamonds are bonded to a rigid steel plate, stock removal is faster and more consistent than with conventional stones.

• Coarse 325 grit (45 micron) for fast edge setting and repair
• Extra-fine 1200 grit (12 micron) for honing and refining
• Sharpen dry — no oil or water required
• Industrial diamonds provide higher cutting rate than oil/water stones

Will this stone stay flat and durable over time?

SHARPAL’s MirrorFlat technology and a 0.35" thick stainless-steel base minimize flex and wear that commonly cause uneven surfaces. The electroplated diamond layer resists glazing and maintains consistent contact so you get repeatable results session after session.

• 0.35" thick steel backing for rigidity and stability
• Electroplated monocrystalline diamonds resist washout or shedding
• Mirror-flat surface engineered to preserve even contact
• Less frequent flattening compared with softer stones

What tools and steels can I sharpen with this stone?

The 162N handles a wide range of materials, from common stainless and carbon steels to harder substrates like high-speed steel, carbide-tipped tools, ceramic edges, and cubic boron nitride coatings. Use the coarse side for shaping and the fine side for a razor-ready finish.

• Kitchen knives, pocket knives, and chef blades
• Chisels, plane irons, and woodworking tools (HSS compatible)
• Ceramic and carbide-tipped blades for touch-ups
• Suitable for hobby, workshop, and light industrial use

What accessories and support come with the stone?

The 162N ships with a practical storage box and a removable non-slip rubber pad that doubles as a stable base during sharpening. An integrated angle guide showing 14°, 17°, 20°, and 25° helps maintain consistent bevel angles, and a printed manual walks through typical sharpening techniques.

• Storage box for safe transport and dust-free storage
• Non-slip rubber pad serves as a sharpening base
• Sharpening Angle Guide with four common angle presets
• Instruction manual and SHARPAL customer support (3-year commitment)

Who is this for: The SHARPAL 162N is aimed at home cooks, outdoorsmen, woodworkers, and hobbyists who want a durable, fast-cutting sharpening solution that eliminates oil and water. If you need reliable, repeatable edge work on a variety of materials — and prefer a low-maintenance, long-lasting stone — this double-sided diamond plate gives professional-level performance in a compact format.