This Fine grade DMT 150mm Diamond Whetstone features a 600 grit, 25 micron surface, identified by its distinctive red dual-coloured circle. The fine grade represents the middle ground in precision sharpening, perfect for regular maintenance sharpening and refining edges after coarse work. This variant is the workhorse choice for tradespeople performing routine sharpening of knives, scissors, woodworking tools and general workshop equipment. Manufactured from monocrystalline diamond with a continuous surface pattern, this fine-grade stone delivers consistent results across all hard materials including carbide and high-carbon steels. The robust construction will never break, chip or develop hollows like traditional whetstones. Non-slip rubber feet and the supplied non-skid mat provide secure positioning during sharpening tasks, whilst water lubrication keeps the surface clean and effective without oils. The permanently etched grit marking and red identification circle ensure you always s