30x35mm Diamond Concave Edge Drill Bits 240Grit 6 Shank | Concave Cylinder & Ring Rounding Bits lapidary polishing wheels smoother finishes

smoother finishes

silicon wafers

Cylinder Head and Round End Cylinder– versatile for general shaping

and pre-polishing across materials such as gemstones

and surface finishing

30x35mm Diamond Concave Edge Drill Bits 240Grit 6 Shank | Concave Cylinder & Ring Rounding Bits lapidary polishing wheels smoother finishesDiamond Drill Bits are precision tools for fine detailing and material processing. Discover the versatility of diamond drill bits, designed with durable diamond grit for aggressive cutting, precise shaping, and long lasting performance. Available in multiple gritscoarse (40,60,80,120) for rapid material removal, and fine(240,600,1200) for detailed engraving and polishing. These tools suit lapidary artists, jewelers, sculptors, and precision craftsmen.