The diamond is the hardest tool material and can run at cutting speeds about 50 times that of high speed steel tool.

the ceramic tools can be used at cutting speeds 40 times that of high speed steel tools.

The cemented carbide tools can be used at cutting speeds 10 times that of high speed steel tools.

The ceramic tools can withstand temperature up to 600 degree centigrade only.

remain constant

increases

decreases

first increases and then decreases

made by cold pressing of aluminum oxide powder

available in the form of tips

brittle and have low bending strength

all of these

cool the tool

improve surface finish

cool the work piece

all of these

water

soluble oil

dry

heavy oils