Tungsten Carbide Burs Flat Fissure Plain Cut FG 58 012 Manufactured in the UK, UnoDent Tungsten Carbide Burs achieve the highest quality with stainless steel shank and low neck braze for maximum strength. They offer fast, smooth, vibration free performance, delivering patient comfort and reduced operative time. Full FDA, ISO, and CE approval. All UnoDent TC Burs are supplied in blister packs featuring the patented ‘Solo-Peel’ dispensing design:. Back wrapper peels off easily. One at a time access. Remaining burs stay secure and well protected. Less risk of injuries.