HP Diamond Burs for Labs

All burs are with HP shank, 3/32”, shank diameter 2.35mm. Fit to electric micromotor.

Color ring

Grit

Usage

Black

Super coarse

70mesh

Fast aggressive on porcelain and some kind of metals. For prepping metal and ceramic

Green

Coarse

100mesh

Aggressive on ceramic.

Used on most alloys

Blue

Medium

170mesh

Multi-purpose bur. For metals and porcelain combinations

Red

Fine

325mesh

For final shaping. Good for trimming metal margin before porcelain.

Yellow

Extra fine

600mesh

Pre-polish. Good for final adjustment after a glaze bake. Easy to polish glaze

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