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The NORTON 30 is a red diamond grit lapping and finishing compound designed for fine surface finishing applications. Supplied in a 5-gram container, this Grade 30 compound contains diamond abrasive particles ranging from 20 to 40 microns in size. It is used by machinists, toolmakers, and precision maintenance technicians to achieve smooth, refined surface finishes on hard materials including hardened steel, carbide, ceramics, and glass. The red color coding identifies this compound within a graduated grit system, making it easy to track progress through finishing stages.
This compound is suited for fine finishing work on precision components where surface quality is critical. Typical applications include lapping valve seats, precision bores, flat lapping of tooling surfaces, and finishing cutting tool edges. It is used in both shop and field settings by skilled trades requiring close-tolerance surface work. The 5-gram container size is appropriate for low-volume or detailed hand-lapping tasks.
Designed as a fine finishing diamond grit compound suitable for use on hardened metals, carbide, ceramics, and other hard substrate materials in precision lapping and finishing operations.
Diamond grit compounds are applied by machinists and precision tradespeople using lapping tools, flat plates, or hand applicators. Apply sparingly to the work surface or lapping tool and use consistent, controlled strokes to avoid uneven material removal. Keep compounds of different grit grades separated to prevent contamination between finishing stages. Clean the workpiece thoroughly before moving to the next grit grade or final inspection.
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