This Coarse grade DMT F70 Diamond Whetstone in blue offers aggressive sharpening for blades that need significant restoration or reshaping. The 325g coarse grit is ideal for repairing damaged edges, removing nicks, and establishing a new bevel on dull tools. Perfect for tradespeople who need to quickly restore cutting performance to worn knives and tools, this variant delivers fast material removal whilst maintaining the precision you expect from diamond sharpening technology. The flip-open lid provides a secure handle during use, whilst the swivel ring lets you attach it to your keychain for constant accessibility. When opened to its full 140mm length, you have ample sharpening surface for most pocket knives and small hand tools. The blue colour coding makes it instantly recognisable as your coarse grade stone, preventing confusion when you need aggressive sharpening action. Features and Benefits:Coarse 325g grit for fast material removalBlue colour coding for easy identificatio