Tapered Reamer

How To Choose The Best Tapered Reamer

What Is The Purpose Of Tapered Reamers?

Tapered reamers are used in metalworking processes to remove material by creating a series of progressively smaller diameter holes. In addition to being useful for removing small amounts of material, these drills allow for more precise drilling operations because the drill bit has a constant radius throughout its length.

How Do Tapers Reamers Work?

The process begins with a cylindrical blank which is attached to a spindle. As the tool spins, the end of the blank contacts the workpiece and removes material. At the same time, the spinning action causes the drill head to rotate around the axis of the shaft. Because the hole created by the tapering drill is always tangent to the original circular path, the resulting bore is perfectly round.

Are There Any Other Uses For Tapering Drill Bits?

There are many other uses for tapering drill bits besides boring holes into metals. One example is using tapering drill bits to create threads in wood. Another common application is making threaded inserts for fasteners. Threaded inserts are commonly found in screws, bolts, nuts, and washers. If you're interested in learning more about tapering drill bits, check out our .

Benefits Of Using Tapered Reamers

Using tapering reamers offers several benefits including increased accuracy, reduced heat generation, and improved performance. Accuracy is enhanced because there is no variation in the size of the drilled hole. Heat generated during operation is minimized because the entire drill bit rotates within the hole rather than moving back and forth along the edge of the hole. Performance is improved because the rotating motion of the tapering drill creates a smoother cut than traditional straight-sided drills.

Types Of Tapered Drills Available

Tapering drills are available in three different styles. Straight flutes provide the most consistent results while helical flutes produce the smoothest finish. Both types of taps can be used for either right hand or left hand rotation.

Where Can I Find Tapered Reamers?

In order to purchase a tapering reamer, you must first determine whether you require a single piece or multiple pieces. Single piece tapering reamers are typically sold individually whereas multiple piece tapering reamers are packaged together in sets. Sets include two, four, six, eight, ten, twelve, fourteen, sixteen, eighteen, twenty, and thirty-two piece configurations.

Is There Anything Else To Know About Tapered Reamers?

While tapering reamers are primarily used for boring holes, they can also be used to form threads. Threading involves forming a thread onto a bolt or screw so that it fits tightly into another part. Once the desired depth is reached, the tapering drill is removed and replaced with a standard drill bit.

The Importance of Purchasing a Quality Tapered Reamer

Tapered reamers are used by woodworkers who wish to create a perfectly shaped hole with a specific diameter. If you're a hobbyist woodworker, you might be interested in using these tools to cut decorative holes into pieces of wood. But there are many other uses for tapered reamers too. For example, you could use them to drill pilot holes for screws or bolts, or to carve intricate designs into wood. In fact, tapered reamers are so versatile that they're commonly found in power tool kits.

How Do Tapered Reamers Work?

In order to understand why tapered reamers are important, we must first explain how they function. First, let's talk about the process of drilling holes. Holes are drilled by forcing a bit into the material being worked upon. As the bit penetrates the material, friction causes heat which melts the metal particles around the tip of the bit. Once the molten particles cool down, they form a hard shell called "metal shavings." These shavings accumulate inside the borehole and eventually clog the hole. To remove the shavings, the operator needs to periodically replace the bit. However, replacing bits takes time and effort. So, most operators prefer to purchase a set of bits that has been pre-sharpened. This way, they only need to sharpen the tips once before they start working.

Now, let's take a closer look at tapered reamers. Unlike drills, tapered reamers require no sharpening. The conical shape of the head creates a gradual transition between the cylindrical body and the pointy tip. Because of this design, the tapered reamer cuts its path more slowly than a standard drill bit. Therefore, it doesn't cause as much heat buildup and produces fewer shavings. Also, because the tapered reamer does not generate as much heat, it leaves behind a smoother finish.

Benefits of Using Tapered Reamers

Using tapered reamers offers several benefits. First, they allow you to quickly and efficiently produce accurate holes. Second, they leave a cleaner finish than regular drill bits. Third, they reduce the amount of heat generated during drilling. Finally, they provide greater control over the depth of the hole. All of these factors contribute towards making tapered reamers ideal for creating precise holes in wood.

Types of Tapered Reamers

There are three types of tapered reamers available today: hand held, bench top, and electric powered. Handheld tapered reamers are designed to fit comfortably in your hands while allowing you to perform precision tasks. Benchtop models are typically mounted onto a stationary base and connected to electricity via a cord. Electric powered tapered reamers are battery operated and controlled by foot pedals. Each type comes with different features depending on the manufacturer. Some manufacturers include variable speeds, adjustable guides, and automatic shutoff mechanisms.

Tapered reamers are designed with a beveled edge which makes them ideal for shaping wood into a variety of different profiles. The advantage of using these types of reamers is that they allow you to create complex curves and angles. If you're working with hardwood, softwoods, or other materials that require more precision, a tapered reamer is perfect for the task.

Types of Tapered Reamers

There are two main types of tapered reamers available today. One type has a straight shank while another has a curved shank. Both types are useful depending on the application. Straight-shanked tapered reamers are best suited for creating flat surfaces. Curved-shanked tapered reamers are great for creating rounded edges. There are many advantages to each style.

Straight Shanks

The straight-shanked tapered reamers are generally easier to handle because there is no curve to contend with. However, they lack the ability to form sharp corners. In addition, they cannot be used to cut across grain lines. Because of these limitations, they are only suitable for applications where roundness isn't important.

Curved Shanks

These tapered reamers are able to produce sharper corners and cuts than straight-shanked models. Their curved shape allows them to follow the contours of the material being worked. As a result, they provide greater accuracy and control.


The length of the tapered reamer is determined by the amount of material needed to complete the project. Most manufacturers recommend between 6"-12". Longer lengths are required for projects requiring multiple passes.


This refers to the angle formed by the top of the blade relative to the bottom of the blade. Some manufacturers suggest angles ranging from 15 degrees to 45 degrees. Generally speaking, the higher the number, the steeper the angle.

Blade Shape

Some tapered reamers have blades shaped like triangles. Others have blades shaped like rectangles. Blades shaped like squares are rarely seen. Blade geometry affects the way the tool works. Triangular blades are most efficient at removing stock from the center of the piece. Rectangle blades remove stock faster along the sides of the piece. Square blades are good for removing stock from the ends of pieces.


All tapered reamers are finished with a high quality coating. This finish protects the metal from corrosion and prevents rusting. The finish also improves the appearance of the product.


Because tapered reamers are exposed to heavy loads during operation, they must be constructed of strong metals.

Different Types of Tapered Reamers

There are many different types of tapered reamers available today. The most common type is the standard round-nose reamer which has a flat nose with no beveled edge. There are several other types of tapered reamers including square-nose, triangular, and hexagonal. Each type offers its own advantages depending upon the application. For example, the round-nose reamer is best suited for boring holes into soft materials while the square-nosed reamer is ideal for drilling holes into hard materials. The triangular shaped reamer is good for both soft and hard material applications. Lastly, the hexagonal shaped reamer is great for creating complex geometric patterns in wood and metal. However, each tool has its own unique features and uses so it’s important to know what type of tapered reamer you require before purchasing.

Round Nose Reamer

The round-nose reamer is probably the most commonly used type of tapered reamer. Round nose reamers are designed to cut circular grooves into softer materials like plastic, foam, leather, etc. While these reamers are very versatile, they aren’t always suitable for harder materials because they lack sufficient strength to drill straight down into the hardest metals. If you plan to use a round nose reamer to bore holes in steel, aluminum, brass, copper, etc., you must purchase a special hardened version called a carbide tipped reamer. Carbide tipped reamers are more expensive than regular round nose reamers, however, they provide superior performance by providing greater penetration power and durability.

Square Nosed Reamer

The square-nose reamer is another popular choice among professional woodworkers. Square nose reamers are typically manufactured using high quality stainless steel blades. Because they are stronger than round nose reamers, they are able to withstand higher torque loads and therefore produce straighter cuts. In addition, square nose reamers are easier to control during operation making them perfect for precision tasks. Like round nose reamers, square nose reamers are also capable of boring holes into harder materials. However, square nose reamers are generally only recommended for softer woods like pine, cedar, mahogany, and birch.

Triangular Reamer

The triangular shaped reamer is a relatively new design that was developed specifically for working with difficult materials like stone, concrete, brick, tile, marble, granite, glass, ceramic, and porcelain. Triangular shaped reamers are extremely useful for creating intricate designs in these materials. Unlike traditional round nose and square nose reamers, triangular shaped reamers are not limited to specific materials. Instead, they can be used to create precise cuts in almost anything. As long as there is enough room between the blade and the object being drilled, the triangular shaped reamer can perform well. Unfortunately, triangular shaped reamers are quite costly compared to round nose and square nose reamers. Therefore, unless you're planning on doing extensive carving projects, it might be wiser to invest in a cheaper alternative.