Durable Diamond Round Ball Burr Drill Bit Tool 4-12mm

Description: 1. Cylindrical tip, diamond coated head. 2. Can be installed on the electronic grinder, hanging grinder and hand electric drill. 3. Used for sculpting, dressing, grinding and internal grinding carbide in ceramics, glass, gemstones, alloy and many other abrasive materials.

Specification: Material: Metal, Diamond. Shape: Round Ball Shape. Shank Diameter: 3mm(0.08inch). Head Diameter:4/5/6/8/10/12mm Color: Silver Tone. Length:33-40mm Quantity:6pcs

Package Includes: 6pcs Grinding Needle Head

Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.