Mesh and micron grit scales confuse many buyers — this guide explains diamond grit sizing for accurate tool specification.
Specifying diamond tools requires understanding grit size — the dimension of the diamond particles embedded in the bond. Importers, procurement officers, and fabricators who confuse mesh and micron scales order tools that cut too aggressively or polish too slowly. Protec Tools labels all products with both mesh and micron equivalents to eliminate specification errors.
Mesh vs Micron Scales
Mesh size refers to the number of openings per linear inch in the screen used to sort diamond particles. Higher mesh numbers mean finer grit. Micron size measures the average particle diameter directly in micrometers — lower micron values mean finer grit.
- Coarse (30–40 mesh / 400–500 micron): Aggressive cutting, fast material removal, rough finish.
- Medium (60–80 mesh / 180–250 micron): General-purpose cutting and grinding.
- Fine (200+ mesh / 74 micron and below): Polishing, finishing, and precision grinding.
Application Matching
Blade segments typically use 30–60 mesh diamond for fast cutting. Polishing pads progress from 50 grit through 3000 grit in resin-bond sequences. Grinding wheels for carbide use 100–200 mesh for finishing passes. Specifying the wrong scale — ordering 80 micron when 80 mesh was intended — results in a tool that performs completely differently than expected.
Specification Best Practices
- Always confirm whether the spec sheet uses mesh or micron before ordering.
- Request both values from the manufacturer to avoid conversion errors.
- Match grit to the target surface finish or cutting speed, not habit alone.
- Keep a grit conversion chart in the procurement file for quick reference.
Protec Tools provides dual-scale grit specifications on all product data sheets. Contact us for a grit selection guide tailored to your product range.
Related Protec Tools products: Laser welded diamond blade, Sintered diamond blade, Diamond core drill bit, Diamond grinding wheel
