3-in-1 Diamond Sharpening Stone – Featuring three 200 x 70mm plates with varying coarseness of diamond grit for versatile sharpening, honing and polishing. The 150 and 325 grit sides are ideal for coarse sharpening, while the 1200 grit side provides the blade with a finished edge. Precision Knife & Tool Sharpener - This Triangular Diamond Sharpening Stone Kit is a durable and versatile whetstone designed for fast, effective sharpening of all types of blades and cutting tools. Ideal for sharpening knives, scissors, chisels, plane irons, TCT router bits and more with minimal effort. Durable Diamond Coated Surfaces - Built with diamond grit, this sharpening tri-stone is tough enough to handle carbon steel, high-speed steel (HSS) and tungsten carbide tools. It also doubles as a surface prep tool for ceramic, porcelain and glass. Non-Slip Base for Safe Use – Comes complete with a stable plastic base which feature non-slip pads, keeping the tri stone stable during use, for secure and steady sharpening. Ideal for use in kitchens, workshops, garages and job sites. Use Wet or Dry - Unlike traditional whetstones, this diamond stone can be used dry or with water lubricant, eliminating the mess of oils. The sharpening surface remains flat and will not ‘groove’ over time, providing consistent straight edges on precision cutting tools.