In drilling mild steel and brass, the point angle of a drill is `118^circ`
Answer : Option A
The cutting speed for counter-boring should be __________ that of drilling operation.
The usual value of the helix angle of a drill is
Glazing in grinding wheels __________ cutting capacity.
In the relation VTn = C, the value of n for high speed steel tools varies from 0.25 to 0.40.