HSS Gear Hobs: 1.Module: m1-m40 2.ClassAA ... Gear Hobs:1.Gear hobs,spline hobs,standard gear hobs,sprocket hobs,worm gear hobs, serration hobs,timing pulley hobs 2.DIN/BS/JIS/GB Gear hobs,spline hobs,standard gear hobs,sprocket hobs,worm gear hobs, serration hobs,timing pulley hobs ... .510080883210611510010832106.51151001084010711510010840108125130138401091251301384010101401601704010 HSS Gear Hobs