Böker Flattening Stone Grit 220

A flattening stone for flattening/straightening whetstones with transverse grooves to absorb abrasion. Both natural and synthetic whetstones become hollow on the working surface over time during sharpening, resulting in an inward curvature. The truing stone is used to produce or maintain a flat/straight surface. As a second product application, the truing stone can also be used to rub grinding sludge from an existing grindstone. When grinding with abrasive sludge, the so-called “rolling grain” is used. With abrasive sludge, the sharpness can be produced more quickly and finer with the same grit than with the bare grinding stone surface. For which whetstones is the product suitable? Suitable for Japanese water stones of any grit as well as soft-bonded natural stones (e.g. Belgian chunk/coticule). Not suitable for Arkansas stones, artificial ceramic stones and diamond grinding plates. Soak the grinding stone and truing stone with sufficient water. Rub the whetstone and truing stone against each other in circular motions until the desired result is achieved. Keep both stones wet during the entire process.