30 piezas brocas de molienda de diamante con cabeza cóncava esférica de 2 mm herramientas lapidarias para piedra

Model:2mm SPHERICAL CONCAVE diamond grinding bits. Set Includes:Bur. Head Shape: SPHERICAL CONCAVE Head. Suitable For:Grinding. The diamond mounted point can be installed on the electric grinder, hanging mill and hand electric drill (not included here).

eBay