Check the listing for details. 8Pcs Diamond Grinding Head Spherical 1-6 mm Set Coated Mounted Points Spheres. Color: Silver, Condition: New. Listed at 10.90 USD. 8Pcs Diamond Coated 1 mm Dia Spherical Head Mounted Points Grinding Bit 2.35mm Shank Code 10F/15F/20F/25F/30F/40F/50F/60F Specification: Product Name Diamond Mounted Point Tip Shape Spherical, Round Ball Shape Material Metal, Diamond Head Diameter 1.0/ 1.5/ 2.0/ 2.5/ 3.0/ 4.0/ 5.0/ 6.0 mm Shank Diameter 2.35 mm (Close to 3/32") Total Length 42mm ( 1-21/32") Grit 150 (Medium) Color Silver Tone Quantity Total 8Pcs , each size one piece Description: Cylindrical tip, diamond coated head. Can be installed on the electronic grinder, hanging mill and hand electric drill (not included here). Used for sculpturing, dressing, precision grinding and internal grinding carbide in ceramic, glass, precious stone, alloy and many other abrasive materials. Regular Air postage from China to Worldwide and takes 15-35 days delivery to your home We will send out your order within 1-2 days after payment has been received and cleared. Please let us know if you are looking for other accessories or hardware. Should you have any queries, please contact me directly. We Can List Any Size & Amount Of This Product: Head diameter from 0.8 mm to 40 mm