LWCUSNJ 8pcs Abrasive Sharpening Stone Set,Multishape Abrasive File Set with 2pcs Fine Whetstone for Sharpener, Chisels, Scissors and Carving Tools

The sharpening stone set including: 6pcs 180# Green carbon oil stone (6 shapes), 1pc Boron carbide oil stone (800#), 1pc Ruby oil stone (3000#); This is a very practical set of sharpening stones for daily sharpening of knife blades or accessories., This set of 8 pcs oil stone can be rough grinding, medium grinding, open edge, fine grinding of cutting tools, mostly used for precision gauges and instrumentation parts and other high finish requirements of the workpiece, cemented carbide, titanium alloy, bearing steel grinding and polishing and so on., Boron carbide oil stone (800#): boron carbide oil stone, is a harder oil stone, it is for optical instruments, meters, precision original grinding has a unique role, suitable for half into the tool grinding, oil stone itself is particularly wear-resistant, not easy to out of the scratch., Ruby oil stone (3000#): ruby oil stone is made of high temperature sintering, with high hardness and strength, suitable for processing high toughness hardened steel, alloy steel, precision gauges and instrumentation parts, such as high finish requirements of the workpiece, ruby oil stone in the sharpening of the edge of the knife only need to add a few drops of water, the grinding of the knife edge is very sharp, suitable for cutting edge of the knife and fine grinding, Green carbon oil stone (6 shapes): Length: 150mm(appr.5.90inch). Shape: blade, semi-circle, rhombus, triangle, rectangle, cylinder. with high hardness and a certain degree of toughness, sharp abrasive, good thermal conductivity, its hardness is second only to boron carbide oil stone; Uses: Used for optical glass, cemented carbide, titanium alloy, jewelry and jade, cylinder liners, bearing steel grinding and polishing, high-speed steel cutting tool sharpening.