... S+F=1.25m Working depth D+F=2.25m T0tal tooth height h=2.5m Clearance of tooth bottom CK=0 ... .25 40 1.5 1.75 63 50 2 27 2.25 56 2.5 71 2.75 63 3 3.25 80 71 ... rde red. ·Hobs with inch holes of 78,1,1116,11,4,11,2,134and2 inch bemade. ·gear hobs of JIS,BS,DIN ...