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Which of the machine tools can be used for boring? 1. Lathe 2. Drilling machine 3. Vertical milling machine 4. Horizontal milling machine

Which of the machine tools can be used for boring? 1. Lathe 2. Drilling machine 3. Vertical milling machine 4. Horizontal milling machine Correct Answer 1, 2, 3

The engine lathe is a basic machine tool that can be used for a variety of turning, facing, and drilling operations. It uses a single-point cutting tool for turning and boring. Turning operations involve cutting excess metal, in the form of chips, from the external diameter of a workpiece and include turning straight or tapered cylindrical shapes, grooves, shoulders, and screw threads and facing flat surfaces on the ends of cylindrical parts.

Drilling machines also called drill presses cut holes in metal with a twist drill. They also use a variety of other cutting tools to perform the following basic hole-machining operations:

(1) reaming

(2) boring

(3) counterboring

(4) countersinking

(5) tapping internal threads with the use of a tapping attachment.

A milling machine cuts metal as the workpiece is fed against a rotating cutting tool called a milling cutter. Cutters of many shapes and sizes are available for a wide variety of milling operations. Milling machines cut flat surfaces, grooves, shoulders, inclined surfaces, dovetails, and T-slots.

Vertical milling machine is used for the boring but horizontal milling machines cannot be used for boring.

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