Dremel 90930 Carbon Motor Brush Set, 2-Pack

by Dremel

Product Description

Amazon.com Product Description

The Dremel Carbon Motor Brush Set restores life to your corded rotary tool. These motor brushes are designed for Dremel master mechanic and rotary tool models. They can also be used with Dremel contour sanders. These brushes should be replaced every 60 hours. This set includes two brushes.

Product Description

The Dremel Carbon Motor Brush Set restores life to your corded rotary tool. These motor brushes are designed for Dremel master mechanic and rotary tool models. They can also be used with Dremel contour sanders. These brushes should be replaced every 60 hours. This set includes two brushes.

Product Details

• Shipping Weight: 0.5 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B00004UDKL
• Item model number: 90930
• Average Customer Review: 5.0 out of 5 stars  See all reviews (9 customer reviews)
• Amazon Best Sellers Rank: #5,844 in Home Improvement (See Top 100 in Home Improvement)
• Discontinued by manufacturer: Yes

Customer Reviews

Most Helpful Customer Reviews

6 of 6 people found the following review helpful:

5.0 out of 5 stars MUST HAVE! Hard to Find, and Totally Necessary., May 29, 2007

By 

Rachel Mello (Somerville, MA) - See all my reviews
(REAL NAME)   

This review is from: Dremel 90930 Carbon Motor Brush Set, 2-Pack (Tools & Home Improvement)

If you have a Dremel, you MUST check and replace the motor brushes or else you can end up totally burning out your motor quite suddenly after years of service. (Guess how I know this).

It goes like this: you're cutting along and maybe the housing of your Dremel gets kind of hot. Mine was getting so hot I was getting burns on my hand. (Maybe shoulda paid attention to that). Then, suddenly, the motor just stopped working. Dead tool. That's when I looked down and realized that there are those two plastic screw-cap covers on either side of the switch, with a slot that matches the screw-driver that ships with it. Duh.

I borrowed a manual from a friend who still had hers, and learned that you have to check the motors-brushes and if they're an 1/8" or shorter or if they're worn and pitted, you have to replace them. One of mine was brittle like old bakelite and had to be chipped out with a very fine file (which I broke doing this). The other popped out with the spring like it's supposed to. Once I replaced the brushes the tool worked fine again, but I gather I lucked out and I could have killed the whole thing.

The Home Depots in my area do NOT carry these, though the Lowes sometimes do. But if you rely on your Dremel, I'd say get some with your next Amazon order and hold them at the ready.

3 of 3 people found the following review helpful:

5.0 out of 5 stars proper break-in, July 16, 2011

By 

kw - See all my reviews

Amazon Verified Purchase

This review is from: Dremel 90930 Carbon Motor Brush Set, 2-Pack (Tools & Home Improvement)

Worked fine. Remember, the owner's manual suggests after changing brushes, run @ full speed under no load for FIVE minutes to break-in brushes properly.

3 of 3 people found the following review helpful:

5.0 out of 5 stars My Dremel works again, September 12, 2009

By 

Five 28 (Chicago, Ill USA) - See all my reviews

This review is from: Dremel 90930 Carbon Motor Brush Set, 2-Pack (Tools & Home Improvement)

After owning my Dremel for almost 10 years it started cutting off intermittently for no apparent reason. I would have to shake it and turn it on and off to get it to start up again. Replacing the brushes corrected this issue and it runs like it was new.