Q92
The cold chisels are made from
A.
Cast iron
B.
Mild steel
C.
High speed steel
D.
Cast tool steel
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Cold chisels are made from carbon tool-steel, which is usually octagonal in cross-section.Tool-steel is used as it can be hardened to form a hard and tough cutting edge.
To make a cold chisel heat the end of the bar of tool steel until it is bright red and hammer to the desired shape.