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Difficulty: EasyChisels, Files, and Planes

A technician needs to cut off the rusted head of a steel rivet from a vehicle frame bracket. Which hand tool is specifically designed for cutting and shearing cold metal?

  1. A
    Wood chisel
  2. Cold chiselAnswer
  3. C
    Hand rasp
  4. D
    Coping saw

Answer

Cold chisel
A cold chisel is manufactured from hardened tool steel specifically to cut, chip, or shear unheated ('cold') metal parts such as rivets, sheet steel, and frozen bolts when struck by a ball-peen hammer.

Step-by-Step Solution

1
Analyze the workpiece material and required cutting action
The task involves shearing a structural steel rivet on an automotive frame bracket.
Choosing the appropriate cutting tool requires matching the tool's metallurgy and edge angle with the hardness of the workpiece.
2
Select the appropriate striking/cutting tool designed for cold metals
A cold chisel is selected for the operation.
Cold chisels feature tempered steel bodies and edge bevels typically ground to about 60 to 70 degrees, allowing them to withstand heavy hammer blows while cutting through ductile metals.

Key Concept

Selection and application of chisels for metalworking operations
Estimated Time:45s
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Topics

Chisels, Files, and Planes

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