Why We Need Drilling Machines?

How A Drill Machine Works?
​A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials, which process without damaging it. The drilling machine or drilling press is commonly used in engineering field.

Have you ever thought how the holes are made in a work piece without damaging it? That is why we need drilling machines. A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials. The drilling machine or drilling press is commonly used in engineering field.

• Firstly, we will mark a point on it, where the holes are going to be made.
• Secondly, we use the drilling machine to set up the components, and take a sharp cylindrical multi-point cutting tool, insert it inside the chuck, and fix it tightly there. 
• Thirdly, put the work piece block on the drilling machine table such that the tool tip becomes col-linear with the point marked on the block by rotating table clamp.
• Fourly, move the table along the column until a specific distance between the tool and the block.
• Lastly, we switch on the power supply, then the tool begins to be rotating the hand labor manually, make sure the rotating tool to move linearly towards the block until the tool as rotate the lever, further the tool runs deep into the block, and continue rotating the lever till the tool pierces the block.

That is how a hole is made in block without damaging it. This process of making holes in a block with help of a rotating is called and the tool used is called drill thus the machine setup used is called drill press or drilling machine.​ ​​

Article Source: Quora