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Question

Which of the following tools is used for making holes in wood, metal and concrete?

The correct answer is

Drill machine

Understanding various tools and their specific applications is fundamental in many practical fields, from construction to manufacturing. The question asks to identify the tool used for making holes in different materials like wood, metal, and concrete. Let's analyze the given options to determine the correct tool.

Drill Machine: The Essential Hole-Making Tool

The drill machine is a powerful and versatile tool designed specifically for making holes. It uses a rotating cutting tool, known as a drill bit, which can be changed depending on the material being worked on. Drill bits are available for various materials, including:

  • Wood: Wood bits are designed to bore clean holes in different types of wood.
  • Metal: HSS (High-Speed Steel) drill bits are commonly used for drilling into various metals.
  • Concrete: Masonry drill bits, often with carbide tips, are specifically designed to penetrate hard materials like concrete, brick, and stone.

Its ability to use different types of drill bits makes the drill machine the ideal choice for creating holes in a wide range of materials, fulfilling the requirement stated in the question.

Analysis of Other Tools

Let's examine why the other options are not suitable for making holes:

  • Spanner: A spanner, also known as a wrench, is a hand tool used for gripping, turning, or tightening nuts and bolts. It does not have any mechanism for creating holes.
  • Hacksaw: A hacksaw is a fine-toothed saw, primarily used for cutting metal. It consists of a metal frame with a blade tensioned between its ends. While it cuts materials, it is not used for making holes.
  • Bench Vice: A bench vice is a mechanical device used to secure an object to allow work to be performed on it with tools. It holds the workpiece firmly in place on a workbench, preventing it from moving during operations like drilling, cutting, or filing. It is a holding tool, not a cutting or drilling tool.

Based on the functions described, the drill machine is the only tool among the options that is specifically designed and used for making holes in wood, metal, and concrete.

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Important Questions from Drilling and Reaming

  1. The angle formed at the web of a twist drill between the chisel edge and the cutting lip is known as the _______.

  2. The point angle of a drill bit is ______.

  3. Which of the following machine is based upon the principle that the rotating edge of the tool exerts a large force on the workpiece and holes are being created in the workpiece? The material is removed from the workpiece by the shearing and extrusion process.

  4. Which of the following is a cutting tool used in the drill machine?

  5. Which of the following drilling machines is used for the purpose of drilling several holes simultaneously?

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