Hole saw is a tool which is used to make circular holes in variety of materials. It is also known as a hole cutter. This tool is annular in shape and have a pilot drill bit at their center with a toothed cutting edge on the open end. The maximum depth to which a hole saw can cut is limited by the depth of its cup-like shape. Hole saw are majorly used to cut plastic, wood, mild steel, aluminium, fiberglass, copper, plastic, brass, tin etc. It has ability to drill varied hole sizes, it serves as an advantage for the hole saw over twist drill or spade drills. It is a basic tool used by electricians and labourers at construction site. Its demand is very high in construction industry because of its efficiency and availability of wide range of sizes. Increase in infrastructural development, boom in electrical industry are some of the key growth driver of hole saw industry. Now a days, hole saws comes with new designs and materials to cut holes cleaner, faster with durability. Man...