200mm Japanese Combination Water Stone - 2000/10000

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These are the largest water stones that we offer measuring 200mm in length by 80mm in width and 30mm in depth. The large surface area aids the sharpening performance, allows for the sharpening of wide plane blades and offers extra support for honing guides when sharpening chisels and knives. These Japanese combination water stones are man-made from Corundum, a synthetic aluminium oxide abrasive, set in a resin bond. Combination stones consist of two stones of different grits which are machine-fused together to create a permanent joint, allowing you to rotate the stones to select the most appropriate grit. The finish that you achieve with a water stone is an amalgamation of the particle size, durability of the abrasive and the resin bond strength. These water stones have a medium strength bond and wear relatively slowly, releasing fresh, sharp abrasive at a reduced rate in comparison to stones with weaker bonds that release abrasive at higher rates and wear down more quickly.

The water stone formulation is excellent for sharpening O1 general tool steel, a steel commonly used to make knives, and are fast cutting when sharpening tough alloys such as A2 and M2 high speed steels which are used to manufacture chisels, plane irons, turning and carving tools. You simply immerse the stones in water and allow to soak for 3 to 5 minutes, at which point they are ready for use. It is important to ensure the water stone retains moisture during the sharpening process.

The fresh abrasive particles break down and dull during the sharpening process, creating progressively finer grits, allowing you to move seamlessly from a coarse grit stone, to a medium grit stone to a fine grit stone. After use leave the water stone to dry out naturally, before using a diamond flattening stone to re-level the face of the water stone. These combination stones sit in a polymer base which has four no-mar rubber feet to prevent the stone from wandering during the sharpening process whilst protecting the work surface from scratching. These combination stones come with a 60mm x 20mm wide mini-flattening stone for reshaping the surface of the stone.

This combination water stone is 2000 grit and 10,000 grit. The 2000 grit stone is used to refine and sharpen the edge of knives and fine edge tools and the 10,000 grit water stone is an ultra fine grain stone for final polishing and adding a mirror finish. ©