Maximum outside diameter of hobs with helical flutes 230mm(9.1/16")300mm、Maximum outside diameter of hobs with straight flutes 250mm(9.7/8") 300mm、Maximum depth of flute 50mm(2")、Minimum flute lead 125、Maximum lead angle 45°、Number of flutes 3 to 45、Maximum grinding slide stroke 475mm(18.3/4")、Minimum grinding wheel diameter 150mm(6")、Grinding wheel speed,infinitely variable,from 1500 to 2700 r.p.m、grinding slide feed rate,infinitely variable from 0 to 16 m/min、Distance between center 260~660mm 、 machine weight 4300KG、machine size 2000(L)×1600(W)×1700(H)