Can Slotted And Drilled Rotors Be Turned

Yes, slotted and drilled rotors can be turned. This process is often referred to as machining or resurfacing which involves a special machine that cuts away the top layer of metal from the rotor. As the rotor wears down from use over time, it may become warped or have grooves in it.

Turning them will remove any warping and smooth out these surface imperfections so that braking performance is restored to its original condition. Additionally, turning them also reduces brake pad noise, vibration, dusting and excessive wear on both pads and rotors. It should be noted however that this process does reduce the thickness of the rotor so if they are already thin then it might not be recommended due to safety concerns related to heat dissipation during hard braking periods.

Yes, slotted and drilled rotors can be turned. This process involves machine turning the rotor to get rid of any grooves or score marks created by normal wear and tear. Turning a rotor removes a small layer of metal from it that is usually measured in thousandths of an inch.

As long as there is enough metal left on the rotor so that it can meet safety requirements, then it can still be used after being turned.

Can You Resurface a Drilled & Slotted Rotor? | PowerStop

Can Drilled Rotors Be Resurfaced

Yes, drilled rotors can be resurfaced in order to extend their life and help maintain performance. Resurfacing a rotor involves machining off the top layer of the rotor disc to make it smooth again, eliminating any grooves or bumps that may have developed over time from excessive heat and wear. This process also helps remove any rust or corrosion that has built up on the surface of the rotor.

However, it is important to note that if too much material is removed during resurfacing then it will reduce the overall thickness of your brake rotors, which could cause them to become unsafe for use.

Can Slotted And Drilled Rotors Be Turned


Is It Ok to Resurface Drilled And Slotted Rotors?

When it comes to brake rotors, one of the most common questions that drivers have is whether or not it is okay to resurface drilled and slotted rotors. The answer isn’t always a simple yes or no; in some cases, resurfacing these types of rotors can be beneficial but there are also risks involved. Let’s take a closer look at the pros and cons of resurfacing drilled and slotted rotors so you can make an informed decision about your vehicle’s brakes.

One advantage of resurfacing these types of rotors is that it allows them to become smoother again, which helps improve braking performance. This process essentially removes any grooves on the rotor surface caused by wear and tear over time, as well as eliminating any vibration you may feel when applying pressure on the brakes. It can also help reduce brake noise because when done properly, it makes sure all surfaces are even with each other for better contact between disc pads and rotor surfaces.

Lastly, if your vehicle has been equipped with high-performance aftermarket performance parts like larger calipers or bigger brake kits than stock ones then having your drilled/slotted rotors resurfaced will ensure they remain in top condition for optimal stopping power when using those components. On the other hand, there are some disadvantages to consider before choosing this option such as cost since buying new replacement discs could be considerably cheaper than getting them machined down; this might not be practical especially if you don’t do regular track rides where more aggressive braking performance is needed often times due to higher speeds reached during racing events etc.. Additionally, depending on how much material needs removing from your existing discs during machining process (which itself depends on their current condition), they could end up becoming thinner which weakens their overall structural integrity thus making them more prone to warping should temperatures get too extreme while driving – something worth keeping in mind if you live in areas known for hot weather conditions throughout year round!

What is the Downside to Drilled And Slotted Rotors?

Drilled and slotted rotors have become a popular choice for performance-minded drivers, but there are some downsides to consider before making the switch. The primary downside is that these rotors are not as durable as solid rotor discs and will require more frequent replacement. Additionally, because of their design they may also be prone to cracking under extreme heat conditions due to the expansion of air pockets between the drill holes during operation.

This can lead to significant vibration while braking which can be dangerous in emergency situations. Drilled and slotted rotors also tend to produce more brake dust than traditional solid rotor disc brakes, meaning you’ll need to clean your wheels more frequently if you opt for this type of setup. Finally, because they tend to wear out faster than other types of brakes, they are often less cost-effective in the long run since you will need to replace them sooner.

Is It Cheaper to Resurface Or Replace Rotors?

When it comes to deciding whether or not it is cheaper to resurface or replace rotors, the answer depends upon a few different factors. Generally speaking, if you are able to properly machine the rotor and replace all of the necessary components that have worn down over time, then resurfacing is indeed cheaper than replacing them. This works especially well for vehicles which may have higher-end parts installed from their manufacturers as these parts tend to be more expensive when replaced compared with other off-brand replacements.

However, in some cases where there has been significant damage done due to wear and tear, such as severe warping or grooving of the rotors surface, then replacing them altogether may be a better option since machining them would likely result in an uneven surface which could lead to further problems down the road. Ultimately this decision should come down to what works best for your particular situation and budget so make sure you consult with a qualified mechanic before making any final decisions.

How Do You Break in New Drilled And Slotted Rotors?

Breaking in new drilled and slotted rotors is an important part of ensuring your brakes function properly and safely. The process involves bedding the pads onto the rotor surface, which helps to evenly distribute brake pad material across the entire rotor surface. Bedding also helps create a uniform coating on both sides of the rotor that will improve braking performance while reducing noise, vibration, and harshness (NVH).

To break in your rotors correctly: 1) Start by slowly driving around with light pressure applied to your brakes for approximately 10-15 minutes. This allows for heat to build up between your pads and rotors without causing any damage or excessive wear;

2) Once you reach higher speeds, begin gradually increasing the pressure applied to your brake pedal until you feel them engage; 3) Stop briefly every few minutes during this process to allow time for cooling down before reapplying greater force; 4) After you’ve completed several cycles of braking at different speeds and pressures, it’s recommended that you perform one final stop from high speed where maximum force is used – allowing for proper bedding-in between all parts involved.

By following these steps when breaking in new drilled and slotted rotors, not only will they last longer but they’ll be more efficient as well – providing improved stopping power each time you hit those brakes!


This article has discussed the different types of rotors available and answered the question, “Can slotted and drilled rotors be turned?” The answer is yes, both slotted and drilled rotors can be turned. However, it is important to note that turning your rotor may reduce its lifespan due to wear on its surface.

Additionally, some manufacturers advise against turning their specific rotor designs because they are designed to have a certain level of rigidity for optimal performance. Ultimately, when considering whether or not you should turn your rotor, it is best practice to consult with a trained automotive technician who can evaluate your particular needs.


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