Gritomatic - High precision knife sharpeners and sharpening supplies
It all starts with a knife. A knife that deserves respect and requires proper maintenance. Keep it sharp, the magazine articles say. But this can be a difficult and frustrating process. Old crafts are becoming less important, and tool sharpening skills are no exception. Our mission is to ensure this craftsmanship endures. The idea of knife sharpening being performed by the individual to whom the knife belongs is close to our heart. As such, the support we offer our customers includes information about sharpening stones, abrasives and knife maintenance. We provide modern, high-quality sharpeners that give a fast, long-lasting edge, as well as various stones and accessories. We have a great love for the craft of knife sharpening, and our aim is to share this passion with our customers.
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Featured products

Rotating Clamp System for Hapstone


Hapstone

Hapstone Rotating Clamp System is an optional upgrade module designed to clamp the knife and flip it easy and fast during sharpening on Hapstone V Series knife sharpeners. Rotating Clamp System helps to maintain the consistent sharpening angle when flipping the knife.

Blog

Upcoming products

February 04, 2018

Gritomatic will add many new KME stones in March. A little preview of first three:

  1. Transition Coticule - purplish blend layer between Yellow Coticule and BBW with unique properties (like a higher performance than Coticule and BBW.) [Photo shows BBW - Transition Coticule - Yellow Coticule for comparison]
  2. Alumina-Zirconia Ceramic (limited edition) - the cut of a LapMaster ceramic disk for lapping microprocessor integral chips. Alumina-Zirconia outperforms Alumina in abrasion resistance.
  3. Soft Washita from Dan's Whetstone - coarser version of Soft Arkansas.

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Interactive grit chart

October 17, 2017

Take a look at our new Interactive grit chart. Whenever you have any sharpening stone opened in Gritomatic.com, you may see grit information in specs. Different colors corresponds to grit range (extra coarse/coarse/medium/fine/extra fine/ultra fine), and abrasive scale is specified.

If you want to check how these grits correspond to another scale, you may click button to open interactive chart. The emphasized column is an abrasive scale used for the selected sharpening stone. Crystal shaped marks show values available grits or a composition of stone set. The green horizontal ruler floats above mouse cursor and helps you to convert grit to another scale. Phone and tablet users may click anywhere to move the ruler to another position.

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Renaming Attention

October 14, 2017

Gritomatic synthetic stones made of silicon carbide and aluminum oxide can be labeled in either FEPA-F or JIS grit scale. To make grit uniform and customer-friendly, we have started transition to the japanese (JIS) grit scale for all Gritomatic waterstones. Old naming: F 120, F 220, F 400, F 600, F 1000. New naming: 120, 240, 600, 1000, 2500.

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