10 Pcs Spherical diamond grinding needle for grinding & carving gemstones, jade, jadeite

Handle diameter: 2.35
Grinding head diameter: 0.5 mm, 0.8 mm and 1 mm, 1.2 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm.

Handle diameter: 3mm.
Grinding head diameters: 8mm,10mm,12mm.

Package contains: 10 Pcs Spherical carborundum grinding needles.

Usage: Suitable for jade carving, gemstone carving, stone carving, grinding and polishing.

Dental plastic surgery grinding, metal surface polishing.

Material: Alloy steel + diamond particles

Features: High hardness, durable, and not prone to wear.