Q253
A cold chisel is made of
A.
Mild steel
B.
Cast iron
C.
H.S.S.
D.
High carbon
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.