Fast delivery across Europe
DMT
American diamond sharpening tools — the cutting edge since 1976
DMT (Diamond Machining Technology) has been manufacturing precision diamond sharpening tools in Marlborough, Massachusetts, USA, since 1976. DMT produces diamond bench stones, portable sharpeners, pocket sharpeners, guided sharpening systems and lapping plates — trusted worldwide by woodworkers, chefs, outdoors enthusiasts and ski tuning professionals.
Since 1976
Nearly 50 years of diamond sharpening innovation — the original manufacturer of interrupted-surface diamond sharpening technology.
Fast delivery
Order before 2 pm — we dispatch the same day. Fast delivery across Europe via DHL.
World standard for ski tuning
DMT diamond stones are the global standard for ski and snowboard edge tuning — trusted by World Cup race teams.
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Buy DMT at Ernst P AB
Ernst P AB offers DMT diamond sharpening tools for professional woodworkers and craftspeople. DMT — Diamond Machining Technology — was founded in 1976 in Marlborough, Massachusetts, USA, and pioneered the interrupted-surface diamond sharpening stone that has become the industry standard.
DMT diamond stones never dish, never need flattening and cut fast on every steel type — from carbon steel chisels to modern A2, PM-V11 and HSS plane irons. The DMT range includes DuoSharp dual-sided bench stones, DiaSharp single-sided stones, Dia-Flat lapping plates for flattening waterstones, and portable and pocket sharpeners for on-the-go edge maintenance.
For woodworkers maintaining chisels and plane irons, DMT bench stones in coarse (45 micron), fine (25 micron) and extra-fine (9 micron) grits deliver a complete sharpening system with no messy slurry — just add water. Free shipping on orders over SEK 2,000 in Sweden.
About DMT
DMT's monocrystalline diamond surface is bonded to a precision-flat steel plate that will never dish or wear unevenly. This eliminates the need for flattening — a significant advantage over traditional waterstones and oilstones. The interrupted surface pattern channels swarf away from the cutting area for consistent sharpening performance.
DMT Dia-Flat lapping plates have become the standard tool for flattening waterstones. A few strokes on a DMT lapping plate restores a waterstone to perfect flatness — essential for accurate sharpening of chisels and plane irons.
DMT diamond sharpeners are also the worldwide standard for ski and snowboard edge tuning, trusted by World Cup race teams and professional ski technicians. Ernst P AB stocks the complete DMT range. Contact us on 031-703 07 70 or [email protected].
Frequently asked questions about DMT
What is a DMT diamond sharpening stone?
A DMT diamond stone has a layer of monocrystalline diamond bonded to a precision-flat steel plate. It sharpens faster than waterstones, never needs flattening and works on all steel types. Just add a few drops of water as lubricant.
