TurningMillingDrillingTechnicalInformationIndex Solid carbide reamers System code – solid carbide reamers A 3 1 0 1 H7 – 0850 1 2 3 4 5 6 Type Shank type Code Description Code Description 3 Reamer 1 Straight shank 2 Straight shank DIN10 5 Straight shank DIN 6535 HA 9 Morse taper shank B 1 2 Coolant supply Flute Code Description Code Description 0 External 1 Right-hand twist 1 Internal 2 Straight flute 3 Left-hand twist 3 4 Classe de tolérance Diameter [mm] C Code Description Code Description The tolerance class of the 0850 8,5 H7 reamed hole is equivalent to H7 ... (GB/T1800-1804) 5 6 D E a a Reaming C 130