Samura Combination Whetstone, #240/#800

The Samura combination whetstone #240/#800 puts two coarse grits on one stone. It is made for the demanding side of knife care, such as correcting the angle of a blade, and it prepares the edge before you move on to a finer stone.

Grit and sharpening

The grit number tells you how fine a stone is: the lower the number, the coarser the abrasive. Both sides of this stone sit at the coarse end of the scale. In the SAMURA whetstone range, coarse stones like this one are meant for challenging work such as correcting the angle of the blade, while finer stones are meant for slight re-sharpening, finishing and polishing.

Start on the #240 side, then move to the finer #800 side to smooth the edge. If you want a more refined finish, continue on a finer stone afterwards.

Size, weight and warranty

The stone measures 185 × 65 mm and is 32 mm thick, with a net weight of 680 g. It comes with a 2-year warranty.

Best uses

• Correcting the angle of a knife's edge
• Coarse work on the #240 side, followed by the finer #800 side
• Preparing an edge for a finer stone
• Double-bevel knives, one side at a time until a burr appears
• Single-bevel Japanese knives, bevelled side first

Care and sharpening

Before use, submerge the whetstone completely in water for 10–15 minutes and keep it wet while you sharpen. Sharpen one side of the knife until a burr appears, then sharpen the other side, keeping the original factory bevel angle of 15–17°. For single-bevel Japanese knives, sharpen the bevelled side until a uniform burr appears, then pass the concave side lightly over the stone. Repeat on a finer stone if needed.

About Samura sharpening tools

SAMURA recommends whetstones for sharpening kitchen knives, and its sharpening tools are made to do the job without much effort. Alongside whetstones in various grain sizes and other combination whetstones, the range includes a honing rod, an electric sharpener and a sharpening angle holder.