Skip the auto shop - Our mechanics make house calls

What’s the Difference Between Drilled and Slotted Brakes?

Drilled and Slotted Brake Rotors

Brake rotors are a fundamental part of a vehicle’s braking system. They’re a simple system, but made up of many different parts. The driver applies the brakes by pressing on the brake pedal, which signals the rest of the braking system, located near the tires. The brake rotor is what the brake pad clamps down on when the driver applies the brakes. The two main types of brakes are drilled and slotted.

What are the differences?

  • Drilled brake rotors:

    • Have holes drilled into them to release heat and gas build-up.
    • Are considered better for driving in wet conditions, as they allow for better water drainage and aren’t as likely to rust.
  • Slotted brake rotors:

    • Have slots cut into, but not all the way through, the rotor.
    • Are more durable, and less likely to break.

The rotors on a vehicle last, on average, from 30,000 to 70,000 miles. A licensed mechanic can evaluate the rotors and advise you on their status. They should not need to be changed as often as the brake pads, but should be replaced in pairs.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


Post a question and get free advice from our certified mechanics.


More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...

Related questions

Q: Do I need to change all four brakes and rotors at the same time?

When it comes to servicing brakes on a vehicle, the golden rule is to ensure they are completed per axle; meaning you can't replace the brake pads on just the left or right side; it has to be done on...

Q: Rattling noise from front left during left turns or while going over bumps.

Hello. A rattling noise during turns can be caused by many things. If you suspect the noise sounds like a pebble rattle it may be possible that there is one stuck somewhere, perhaps in between the vehicle's wheel well covers,...

Q: Rear right tire scraping wheel well

You will need to look at the strut. It may be bent, or the spindle could have been damaged when he went off road with a lowered car. Have the front end inspected to see if the strut or spindle...