5PCS Diamond triangle Burr Drill Bit Set For Carving Engraving Drilling 4-12mm

Description: 1. triangle 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 ceramic glass gemstones alloy and many other abrasive materials. Specification: Material: Metal Diamond. Shape: triangle Shape. Shank Diameter: 3mm(0.08inch). Size(optional):3*4mm 3*5mm 3*6mm 3*8mm 3*10mm 3*12mm Color: Silver Tone. Length:33-40mm Quantity:5pcs Package Includes: 5pcs 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.