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ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL +NON TECHNICAL) (1 YEAR VALDITY)
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ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL +NON TECHNICAL) (2 YEAR VALDITY)
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ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL ONLY) (1Year Validity)
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ALL IN 1 AE/JE EXAM LIVE CLASSES (TECHNICAL ONLY) (2Year Validity)
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SSC JE RECORDED COURSE (2YEAR VALIDITY).
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SSC JE RECORDED COURSE (1YEAR VALDITY)
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Mechanical MCQ Book written by Er.Harvinder Singh
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Strength of material Full Syllabus
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Fluid Mechanics Full Syllabus
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Theory of machine Full Syllabus
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Thermodynamics Full Syllabus
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Material Science full syllabus
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Machine Design Full Syllabus
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Automobile Engineering Full Syllabus
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Refrigeration and air conditioning Full Syllabus
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Power plant engineering
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Workshop Technology
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Industrial Engineering
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Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.
In machining, boring is the process of enlarging a hole that has already been drilled (or cast) by means of a single-point cutting tool (or of a boring head containing several such tools), such as in boring a gun barrel or an engine cylinder. ... There are various types of boring.
A reamer is a type of rotary cutting tool used in metalworking. Precision reamers are designed to enlarge the size of a previously formed hole by a small amount but with a high degree of accuracy to leave smooth sides. ... The process of enlarging the hole is called reaming.