Sanelli Ambrogio, Naniwa Super Stone Professional Knife Sharpener Stone #400 Coarse Grit Ideal for Correct Chipped Blades with High Polishing Strength Splash&Go Made in Japan

NANIWA SUPER STONE: The Sanelli Ambrogio line of sharpening stones with a lot of polishing force, dedicated to sharpening professionals RAW GRAIN: #400 grit is useful for correcting chips or visible damage on the wire and is ideal for roughing chipped blades SPLASH & GO: This sharpening stone is characterised by the Splash & Go formula. Simply wet the surface quickly before use HOW TO USE: For blades with symmetrical double wire, sharpen both sides, the same number of times, forming an angle of 10-20° between knife and stone. For blades with monolate wire, sharpen the convex side 20 times and the flat side 3 times as much AFTER SHARPENING: Rinse the stone to remove any surface residue and then grind the surface to make it flat. Do not wash in the dishwasher and store at temperatures of approx. 20 °C NANIWA ABRASIVE: The latest technology blends with the centuries-old Japanese tradition of stone sharpening and is reflected throughout the company, from research and development to manufacturing, to achieve high performance sharpening stones