Explanation: master grade is laboratory standard and made from steel carbide or tungsten carbide. tool grade is normal industrial purpose angle gauges made from steel.
Q. What are the two grades of angle gauges?
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Correct Answer: (A)
master and tool room
Explanation by: Mr. Dubey
master grade is laboratory standard and made from steel carbide or tungsten carbide. tool grade is normal industrial purpose angle gauges made from steel.
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