high carbon steel

high speed steel

cast steel

tungsten steel

to reduce friction during cutting a metal

nothing

to give a beautiful shape to it

to help in cutting the jobs having more width and depth

between the inner ends of the two pin-holes

between the outer ends of the two pin-holes

between centres of the two pin-holes

between the inner end of pin-hole and the outer end of the other pin-hole

cast iron

cast steel or special tool steel

mild steel

nickel steel

along the tip to the shoulder

along the tip to the heel

along the tip to the tang

along the heel to the tang