Standard Carbide 56 Description Head Diameter (mm): 0.8 Head Length (mm): 4.2 Overall Length (mm): 19.5 An account is required to purchase on Trihawk. More info Create account Login SKU: FG 56 Categories: Standard Carbide Burs, Straight Fissure Related products Standard Carbide 556 Head Diameter (mm): 0.8 Head Length (mm): 4.2 Overall Length (mm): 19.5 Standard Carbide 170 Head Diameter (mm): 1.0 Head Length (mm): 4.2 Overall Length (mm): 19.5 Standard Carbide 57 Head Diameter (mm): 1.0 Head Length (mm): 4.2 Overall Length (mm): 19.5