Which of the following tools is used for making holes in wood, metal and concrete?
Which of the following tools is used for making holes in wood, metal and concrete? Correct Answer Drill machine
Explanation:
Drilling
- Drilling is an operation to produce a cylindrical hole in a workpiece.
- The tool used in called “drill bit”.
Additional Information
Spanner
- A spanner is a hand tool with jaws or opening or a ring at one end or at both ends for tightening or slackening nuts and bolts and screw heads.
- It is made of drop- forged, high tensile or alloy steel and heat treated for strength.
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Hacksaw
- A hacksaw is a hand tool used to cut metal.
- A hacksaw blade is made of either low alloy steel (LA) or high-speed steel (HSS) and is available in standard lengths of 250 mm and 300 mm.
- The selection of the blade depends on the shape and hardness of the material to be cut.
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Bench vice
- Vices are used for holding the work-pieces. They are available in different types.
- The vice used for bench work is the bench vice or called Engineer’s vice.
- A bench vice is made of cast iron or cast steel and it is used to hold or clamp work for filing, sawing, threading and other hand operations.
- The size of the vice is stated by the width of the jaws. e.g. 150 mm parallel jaw bench vice
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Feb 20, 2025