The DMT 4-in. Diamond Whetstone™ Coarse is a compact, dependable sharpening tool designed to restore dull edges quickly and efficiently wherever your work takes you. Combining a pocket-friendly design with professional-grade diamond sharpening technology, this versatile whetstone is ideal for outdoorsmen, craftsmen, chefs, tradesmen, and anyone who needs a reliable edge maintenance solution that can travel anywhere.
Measuring 4 1/3 inches by 7/8 inch by 3/16 inch, this convenient pocket model provides excellent sharpening performance while taking up minimal space in your gear bag, toolbox, hunting pack, or kitchen drawer. The included protective leather sheath keeps the sharpening stone secure during transport while allowing quick access when you need to restore an edge in the field, workshop, or on the job. Its compact size makes it a practical choice for sharpening knives, tools, and equipment wherever maintenance is required.
The coarse 45 micron (325 mesh) diamond surface is designed to quickly restore neglected or dull edges by removing material efficiently and establishing a strong working bevel. This versatile grit is perfect for bringing worn knives back into service, repairing tired cutting edges, and preparing blades for further refinement with finer sharpening surfaces. Whether you're maintaining a hunting knife after outdoor use, restoring a hardworking pocket knife, or keeping shop tools ready for action, this coarse diamond whetstone provides the cutting power needed to get the job done.
Powered by DMT's micronized monocrystalline diamond technology, the Diamond Whetstone™ sharpens faster than conventional sharpening stones while maintaining reliable performance over years of use. The durable diamond surface delivers consistent results without the uneven wear often associated with traditional abrasives, providing a dependable sharpening solution that requires minimal maintenance. There's no need for messy oils or complicated preparation, either. Simply sharpen dry for quick convenience or use water for easy cleanup.
Built for real-world use, this compact sharpener is rugged enough for professional environments while remaining convenient enough for everyday carry. It offers the perfect balance of portability and performance, making it an excellent addition to camping gear, hunting supplies, emergency kits, workshops, and professional tool collections. From knives and axes to outdoor equipment and specialty tools, this whetstone helps keep essential cutting tools performing at their best.
Proudly made in the USA, the DMT 4-in. Diamond Whetstone™ Coarse represents the quality, innovation, and durability that have made DMT a trusted name in sharpening technology. Designed for users who value dependable equipment, this pocket sharpener delivers fast, consistent edge restoration whenever and wherever it's needed.
Available at Smoky Mountain Knife Works, a Tennessee landmark and the world’s largest knife store.
