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 57SS Head Diameter (mm): 1.0 Head Length (mm): 4.2 Overall Length (mm): 16.5 Standard Carbide 58 Head Diameter (mm): 1.2 Head Length (mm): 4.2 Overall Length (mm): 19.5 Standard Carbide 35 Head Diameter (mm): 1.0 Head Length (mm): 1.0 Overall Length (mm): 19.5