STRAIGHT RACKS PRODUCTS RANGE INDEXSERIESQUALITYMATERIALHEAT-TREATMENTHRCSURFACEDRILLINGTOOTH SYSTEMMODULES200H 6SAE1141induction-hardened teeth56-60ground90°Helical1.591_2_3_3.183_4205H 6SAE1141induction-hardened teeth56-60ground90°Straight1.591_2_3_3.183_4205H 6SAE1141induction-hardened teeth56-60ground180°Helical1.591_2_3_3.183_4215H 6SAE1141induction-hardened teeth56-60ground180°Straight1.591_2_3_3.183_4