DMT Diamond Sharpening Tools

By definition, only one company can be the industry leader.  Diamond Machining Technology (DMT) is that leader, recognised worldwide for product quality, performance and customer service since 1976.

Only the best products will carry the DMT® brand. Founded in 1976, DMT... Read More

By definition, only one company can be the industry leader.  Diamond Machining Technology (DMT) is that leader, recognised worldwide for product quality, performance and customer service since 1976.

Only the best products will carry the DMT® brand. Founded in 1976, DMT Diamond Sharpening Tools is the leading innovator of manual diamond sharpening technology for people and industries dependent upon high-performance edges. Incorporating diamond’s ability to abrade hard metals, DMT's engineering and product development expertise and patented processes have evolved and expanded to service industrial, commercial and consumer markets.

Are DMT products that good?

It is possible to put a great edge onto a knife with very basic equipment and a lot of time. However, with the ever harder and more abrasion-resistant steels, diamond stones make it much easier and faster to achieve that edge. DMT are one of the best, if not the best, makers of diamond sharpening stones. 

Which DMT sharpening stones do I need?

For rough sharpening – to remove chips along the edge or to restore an unusually dull blade – you will need stones from 120 to 400 grit. We recommend stones from 120 and 240 grit in this case. For normal sharpening, stones from 700 to 2000 grit are used. We recommend stones from 700 to 1200 grit. The company offers sharpening solutions for virtually every user-from do-it-yourselfers to professionals and large commercial operations. DMT® specialised, precision sharpening systems function easily and efficiently to sharpen, hone, lap or deburr in the production, maintenance and repair cycles of many products. DMT® continues to be an entirely ‘Made in the USA’ company with all products manufactured in the company’s facility in Marlborough, Massachusetts and distributed throughout the world.

How was the DMT® sharpener invented?

Originally a manufacturer of grinding wheels the company repurposed a center punch-out of a diamond grinding wheel and developed an entire new way of manual sharpening. After testing a sample of a center punch sent out to them, a purchasing agent for L.L. Bean extolled the product’s sharpening performance and worked with the engineers at DMT® to refine the resulting product.

 The result of that cooperation launched DMT® on its way to becoming the recognized leader and the industry standard in diamond-honing hand tools. L.L. Bean remains a DMT® customer to this day. Suddenly, there was an available alternative to the traditional methods of sharpening that required no messy oil, never grooved or hollowed, and lasted and lasted. It was an unbreakable, clean-cutting, and super-fast sharpener, It was a tool that could sharpen any material, including the toughest composites, ceramics and any metal, including tungsten carbide and even polycrystalline diamond (PCD) inserts.

A variety of successful new products in receptive markets fueled the company’s growth. Many innovative DMT® brands are copied but never equaled. Shop DMT Diamond Sharpening Tools today and enjoy free national shipping within South Africa on all orders over R1,500.