How does a reamer differ from a drill bit?

How does a reamer differ from a drill bit featured

Understanding the Difference between Reamer and Drill Bit

If you’re familiar with the manufacturing industry, you would have heard of a reamer and a drill bit. Both these tools play a critical role in creating holes in various materials. However, they differ in their functionality and application.

What is a Reamer?

A reamer is a tool used for enlarging or finishing a previously drilled hole to achieve greater accuracy and precision. It is commonly used in metalworking, where creating precise fitting is critical. Reamers work on the principle of removing a small amount of material from a hole’s surface to improve its roundness and size. Typically, a reamer has two or more fluted edges that help it to cut through the material. Reamers come in different types, including hand reamers, adjustable reamers, machine reamers, and others.

What is a Drill Bit?

A drill bit is a cutting tool used to create cylindrical holes in various materials. It works on the principle of rotary motion and downward force. Drill bits come in different shapes, sizes, and materials and are commonly used in wood and metalworking. Unlike the reamer, a drill bit creates a hole by cutting and removing material from the surface, leaving rough edges around the hole.

How are they Different?

The fundamental difference between a reamer and drill bit is the way they cut through the material. A drill bit cuts-by-friction, which results in leaving a rough hole surface. A reamer, on the other hand, cuts-by-removal, which provides a smooth finish to the hole and ensures greater accuracy. A reamer’s design and functionality make it a better choice for situations where precision and accuracy matter, while a drill bit is a more versatile tool that can handle a broader range of materials.

When to Use Reamer or Drill Bit?

Knowing which tool to use for which job can save you time, money, and effort. Selecting between a reamer and a drill bit depends on a few factors such as the type of material, the size of the hole, the required accuracy, and the budget. In general, use a drill bit for general-purpose drilling, while a reamer is ideal for creating precise, round holes.

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