When a builder or machinist needs to add a hole to a workpiece, there are several ways that this process can be completed. Most people think of using a drill to create a hole, but this often depends on the size of the article of manufacture. In the world or CNC machines, which use automation to carry out large task loads, the creation of a hole or even a passageway in a tube depend upon using the right tools.

To construct such a project, there are three different ways a machinist can create a hole: by drilling, boring, or milling an item. Each of these processes has its own advantages and disadvantages, but when used for the right project, they can produce excellent results. Here is a breakdown of these three types of machines:

Drilling

Just about everyone knows what a drill is. There are many smaller sized drills on the market, which are often used at home for DIY projects. A drill utilizes a chuck, or collet, to hold the drill bit in place; this type of tool holder is also seen in larger applications, too. While some machining may require the use of a drill, most manufacturers will prefer to use boring tools instead, as most drills only create small holes.

Boring

Boring is similar to drilling, only it is done on a boring machine or with similar tools. Boring can happen in one of two ways: holes can either be bored blind, with no existing hole, or the hole can be started by another machine before getting bored and made wider. Boring tools often look very similar to drills, only they are much larger in size. They also require the use of a chuck or collet to hold them in place.

Milling

Milling is another method of cutting a hole into an object, but it has a different way of doing so. A milling boring head would perform the functions of a boring tool by using a milling process. In other words, rather than starting a hole at the center of the workpiece, the milling boring head will spin around the periphery of the hole to make its cuts. This type of work is done on a mill, or milling machine, which may employ milling boring heads or other types of milling devices.

All of the machining processes above are done with various types of equipment, and each will produce a different result depending on the methods used. Have more questions about drills, boring tools, or milling machines? Talk to a manufacturer, or leave a comment below.