How To Make a Dremel Quieter in 6 Easy Ways

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Dremel tools are popular among woodworkers for their versatility in handling intricate and detailed woodworking tasks. However, their excessive noise can make prolonged use uncomfortable and inefficient.

Here, our pro woodworkers will share how to make a Dremel quieter as well as tips on maintaining and extending its lifespan.

What Causes Excessive Noise from Your Dremel Tool?

A Dremel is a powerful tool that can be used for a variety of tasks, such as cutting, cleaning, polishing, sanding, sharpening, and engraving.

Typically, like any other power tool, Dremel’s motor emits some sound during operation. The movement of the attachment or drill bit also produces sound.

Your Dremel tool can be noisy due to the high-speed rotation of the motor and the attachments. The sound can be further amplified if you’re using the tool in a confined space or for extended periods of time.

dremel 4300

However, excessive noise can also indicate a problem with the tool. Therefore, if you notice that your Dremel tool is producing an unusually loud sound during operation, you should stop using the tool immediately and have it inspected by a qualified technician.

This precaution will ensure to prevent accidents and further damaging your Dremel tool. There could be various reasons why your Dremel tool produces unusual sound or excessive noise during operation, including the following:

The High-Pitched Squealing Noise Originates from the Bearings.

dremel bearing

Bearings are small parts of the Dremel that reduce friction and help the motor shaft to rotate smoothly. If the bearings become worn out or damaged, they can produce noise when the tool is running.

The excessive noise occurs because the worn-out bearings can’t support the shaft well or let it turn smoothly. This creates friction and vibrations that cause undesirable sounds.

If you notice a problem with the bearings, check if they are lubricated properly. Add machine oil to the bearings to minimize the noise when the tool is running.

dremel bearing tool

But if the noise persists, you must check the other components of your Dremel tool promptly to avoid further damage.

The Wobbling of the Tool Is Causing the Noise.

When your Dremel tool exhibits excessive wobbling or vibration, it can lead to increased friction and unwanted movement, causing excessive noise during use. This issue often arises when the tool’s shaft becomes bent or damaged.

Additionally, if the tool’s attachments are not securely tightened and properly aligned, it can cause wobbling and louder noise when the tool is running.

To address this issue, ensure that shafts and bits are not damaged and well-maintained. Otherwise, you must repair or replace them immediately.

The Noise Is a Result of Cutting into Wood, Metal, or Plastic.

When cutting into metal wood, or plastic, it is normal for a Dremel tool to generate noise. However, if the noise becomes too loud, you can take a few steps to reduce it.

douglas fir wood

For instance, using appropriate cutting techniques and selecting the correct speed for the material can minimize noise. Additionally, working in an open space can help reduce the sound of the Dremel.

But if the noise remains excessive for you, you should wear the best hearing protection or use attachments or the best Dremel drill bits designed to reduce noise.

Dremel Tool: How Noisy Is It?

Typically, a Dremel operates at around 85 decibels. If your tool produces more than this level, it can cause permanent damage to your hearing over time.

Therefore, it is crucial to ensure that your Dremel’s sound is below 85 decibels. Additionally, you must wear hearing protection when using the Dremel tool for extended periods.

How You Can Keep Your Dremel Tool Quieter in 6 Ways

Dremel tools naturally make noise when running, especially when cutting harder materials. But if the noise becomes too loud, it may indicate a problem that requires immediate repair or replacement. Here are some methods to minimize the noise of a Dremel tool.

using dremel tool on wood

Method #1: Decrease Dremel's rotation speed.

A Dremel tool uses electricity from an outlet or a battery to spin. This movement releases energy in the form of noise and heat. Consequently, when the Dremel spins fast, it uses too much power, releasing louder noise.

It uses a large amount of power from the outlet or a battery to spin quickly. This results in more energy being released as heat and noise. That’s why high spinning speeds make the Dremel louder.

A typical size Dremel can rotate 5,000-35,000 per minute. Generally, the higher rotation speed can make the cutting process more efficient. But it also creates louder noise.

Essentially, you can minimize the noise produced by the Dremel tool if you reduce its spinning speed. Although it can make the cutting process longer, the sound can become more bearable. This will allow you to work more comfortably and effectively.

Method #2: Improve Dremel's maneuverability.

Although Dremel tools are naturally noisy, there are some handling techniques you can use that can minimize the noise.

handling dremel tool on wood

Most woodworkers have difficulty finding a comfortable grip when using a Dremel as it doesn’t have a specific handle. But you can make a hardwood handle for your Dremel so can you maneuver it efficiently.

Adjusting your grip on the Dremel’s handle can help reduce vibrations and minimize the noise during use. Hold the Dremel firmly around the middle part and try to squeeze or compress its central casing.

You can also use both hands to hold the Dremel to minimize the vibrations that create a louder sound. Tighten your grip to keep the Dremel steadier as it cuts through the material to avoid producing excessive noise.

Method #3: Swap out the bits.

Dremel tools can be used with a variety of drilling bits. However, drill bits are prone to wear and tear, and if they become damaged or worn out, they can cause the Dremel to wobble and produce excessive noise.

To prevent this, always check the condition of your Dremel’s drill bits before using them. If they are worn out or damaged, replace them immediately. Ensure that the replacement drill bits are compatible with your Dremel to avoid any further issues.

Dremel 710-08- 160 carving bits

Method #4: Apply lubrication to the bearings.

The most common reason for excessive noise from the Dremel tool is due to poorly maintained or dry bearings. When the Dremel is frequently used for extended periods, its bearings can become dry and eventually wear out if not properly cared for.

To reduce the noise caused by the bearings, you must regularly clean and lubricate or grease them. Neglecting this maintenance can lead to bearing damage due to friction.

For proper lubrication of the Dremel’s bearings, we recommend using machine oil such as grease or a silicon-based lubricant. Avoid using WD-40 as it is not suitable for Dremel tools and can potentially harm them.

Apply a small amount of machine oil to the shaft and bearings using a nozzle. Carefully rotate the shaft to allow the oil to penetrate the bearings.

Add more machine oil using the nozzle until the bearings are fully saturated. Ensure to remove any excess oil by wiping it off with a cotton cloth.

replacing dremel drills

Once the bearings are well-lubricated, the Dremel will operate more quietly, without the shrill screeching noise caused by the bearings.

However, if excessive noise persists, dried bearings may not be the only factor contributing to the noise. Therefore, it’s best to have an experienced technician inspect the Dremel in order to accurately diagnose the main issue.

Method #5: Install new bearings.

If the bearings in your Dremel are severely damaged and cannot be restored through lubrication or are beyond repair, the most effective solution to reduce noise is to install new bearings.

Worn-out bearings are a frequent problem encountered with older Dremel. Therefore, you must immediately replace its bearings to make your Dremel quieter and operate it like a new tool again.

You can buy the replacement bearings at most hardware stores. However, ensure that they are compatible with your Dremel model to avoid further problems.

showing dremel bits

Method #6: Replace worn brushes.

The brushes of the Dremel can become worn out due to the natural wear and tear that occurs over time with regular use.

Typically, the brushes touch the commutator, creating friction and causing them to wear down. This friction can also generate loud noise during operation.

Additionally, excessive pressure or using the Dremel at high speeds for extended periods can contribute to accelerated brush wear.

To ensure optimal performance and minimize noise, you must replace worn-out brushes as part of regular maintenance. This can prolong the lifespan of the Dremel, allowing you to continue using it effectively for a longer period.

Tips to Keep Your Dremel Tool in Good Condition

Generally, it’s easy to keep a Dremel tool in good condition. By following the below simple maintenance practices, you can ensure its longevity and optimal performance without loud noise.

grinding dremel

What if the Dremel Tool is Still Noisy?

If the Dremel tool continues to produce loud noise even after investigating all possible causes and trying the recommended solutions, it may be a result of manufacturing faults or defects within the tool.

In such cases, you must take your Dremel to a repair center and have a professional technician examine and resolve the issue.

Is There a Dremel Tool That Operates Quietly?

No, there is no Dremel tool that can operate quietly. Generally, power tools like Dremel produce a louder sound. Although the new models, specifically the cordless Dremel tools produce less noise, they are not completely quiet.

Is It Possible to Apply Oil to My Dremel Tool?

Yes, it’s possible to apply oil on the Dremel’s bearings [1], shafts, and brushes after every 60 hours of operation.

changing dremel bit

This will ensure the tool’s optimal working condition, preventing premature brush wear and shaft damage. Additionally, properly oiled bearings produce less noise during operation

What Is the Typical Lifespan of a Dremel Tool?

Typically, a Dremel tool can last for at least ten years with proper maintenance. Its batteries can last for a minimum of three years when used for longer periods daily.

As part of regular maintenance, you must check all its components to ensure that they are not worn out or damaged. Additionally, it’s essential to repair or replace damaged parts to avoid serious issues.

What Causes the Wobbling of a Dremel Tool?

The excessive wobbling in a Dremel tool is commonly caused by wear and tear on one side, leading to an imbalance that affects the tool’s operation. This imbalance results in heightened vibration and increased wobbling during use.


There are many simple approaches how to make a Dremel quieter that you can easily follow even without advanced repair skills.

However, if none of these methods prove effective, it’s best to take the Dremel tool to a repair center for professional assistance. They can diagnose and address any underlying problems causing the excessive noise, ensuring proper functionality and quieter operation.

Robert Johnson is a woodworker who takes joy in sharing his passion for creating to the rest of the world. His brainchild, Sawinery, allowed him to do so as well as connect with other craftsmen. He has since built an enviable workshop for himself and an equally impressive online accomplishment: an extensive resource site serving old timers and novices alike.
Robert Johnson
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