Carbide machine reamers K 10 Micrograin, similar DIN 8093, with or without ACUREA hard surface coating, straight NC-shank h6, unequal flute division 58-62-60°, left hand spiral 12°, right hand cutting, from Ø 0.30 up to Ø 13.03 mm available from stock in 0.01 mm increments (also in H7 tolerance) tolerances: 0/+0.003, lead angle 45°.