Straight Reamer vs Tapered Reamer
If you are not a machining expert, you may find it hard to tell the difference between a straight reamer and a tapered reamer. Fortunately, in this article, we will explain everything you need to know about these reamers.
Straight Reamer: Definition and Uses
A straight reamer is a cutting tool designed to enlarge and finish an existing hole in a straightforward or linear manner. The reamer’s flutes are parallel to the reamer’s axis, allowing it to remove small amounts of material in a precise and controlled manner. Straight reamers are commonly used in drilling fixtures, jig bore machines, and milling machines to machine through holes. They are also used in hand-held power drill machines for low-precision applications.
Tapered Reamer: Definition and Uses
A tapered reamer is a cutting tool that is designed to enlarge and finish an existing hole that has a steady taper in one direction. The reamer’s flutes are at a slight angle to the reamer’s axis, turning it into a cone-like shape. Tapered reamers use a radius at the tip to create a tapered cut into a hole. They’re often used in drilling fixtures to machine tapered holes, as well as in hand-held drill machines for high-precision applications.
The Differences Between Straight and Tapered Reamers
The two reamers differ in terms of functionality and applications. Straight reamers are ideal for drilling through-holes or even on flat surfaces since they cut straight and parallel to the axis. Meanwhile, tapered reamers can drill tapered holes because they cut at an angle to the axis. The tapered reamer’s tip is often pointed or cones-shaped, while the straight reamer’s end is flat.
Choosing Between a Straight and Tapered Reamer
When choosing between a straight and tapered reamer, consider the size and shape of the hole you’ll be drilling. If you need to drill a hole through a flat surface, use a straight reamer. Alternatively, use a tapered reamer if you need to create a tapered hole. Also, consider the size of the hole you need to drill and whether you need high or low precision. Tapered reamers are ideal for high-precision work since they can remove material gradually.
