DMT Diamond Precision Since 1976

DMT – Diamond Machining Technology – is the world’s leading manufacturer of diamond sharpening tools. Founded in 1976 by aerospace engineers in Massachusetts, the company designs and produces all its products at its facility in Marlborough, USA. What started as a by-product of a diamond grinding wheel has evolved into a complete product family: from bench stones and folding sharpeners to guided sharpening systems, diamond pastes and sprays. At Swiss-Sale.ch you will find a carefully curated selection of DMT sharpening tools for knives, scissors, chisels and outdoor equipment.

DuoSharp & Dia-Sharp – bench stones for the highest demands

The DuoSharp series is DMT’s patented, double-sided bench stone – a revolution in manual sharpening. Thanks to the interrupted diamond surface, metal filings collect in the recessed areas without impeding the sharpening process. The Dia-Sharp line complements the range with a continuous diamond surface on nickel-steel backing – ideal for sharpening tools that require a consistently flat surface. Both series are available in 8-inch and 10-inch formats, from extra-coarse (220 mesh) to extra-extra-fine (8,000 mesh).

Diafold – compact sharpeners for on the go

The Diafold series combines the sharpening performance of a bench stone with the compactness of a folding tool. Double-sided models offer two grits in one device – for example coarse and fine – and fold flat when not in use. Single-sided variants are particularly suited to serrated knives and specialised blade profiles. Whether hunting, camping or in the workshop: a Diafold sharpener belongs in every kit.

Aligner – guided sharpening with precise angles

The DMT Aligner Easy-Edge system is a guided sharpening system that delivers repeatable results even for beginners. A clamp secures the knife while the diamond stone is guided across the blade at a preset angle. Various grits – from coarse for restoring dull blades to extra-fine for polishing – ensure an optimal edge profile. The kit is supplied in a rugged case and suits both outdoor and kitchen knives.

Dia-Paste & DiaSpray – diamond polish for the perfect edge

For the final polish, DMT offers Dia-Paste diamond compounds in three grades: 6 micron (4,000 mesh), 3 micron (8,000 mesh) and 1 micron (15,000 mesh). The range is complemented by DiaSpray at 0.5 micron (30,000 mesh) – for users seeking the ultimate mirror finish. The pastes can be applied to leather, wood or felt, transforming a sharp blade into a precision instrument.

Brand Profile – DMT

Who are DMT sharpening tools for?

• 💎 Monocrystalline diamonds – precisely micronised for uniform material removal
• 🇺🇸 100 % Made in USA – designed and manufactured in Marlborough, Massachusetts
• 🔬 Interrupted Surface Technology – patented polka-dot pattern for clear sharpening surfaces
• 🪨 DuoSharp – the world’s first double-sided diamond bench stone
• 📐 Aligner Kit – guided sharpening system for repeatable angles
• 🏔️ Diafold – compact folding sharpeners for outdoor, hunting and camping
• ✨ Dia-Paste & DiaSpray – mirror finish down to 0.5 micron (30,000 mesh)
• 💧 No oil required – sharpen dry or with water
• 📜 Over 50 patents and trademarks – nearly 50 years of innovation
• 🛡️ Founded by aerospace engineers – precision from high technology