
3M 21758 Scotch-Brite Roloc Pro Brake Hub Cleaning Disc Kit, 5 Discs & Holder
Professional Rust Removal - 3M Scotch-Brite Brake Hub Cleaning Disc Kit (21758, 5 Discs)

Reliable Hub Prep Without Stud Damage
Rusted brake hubs cause rotor runout, brake pulsation, and premature pad wear. This brake hub cleaning disc kit from 3M solves these problems with professional-grade silicon carbide discs that remove corrosion safely without damaging wheel studs. Perfect for automotive shops, fleet maintenance, and brake specialists who need consistent, reliable hub surface preparation.
Key Features and Benefits
Stud-Safe Design - Protects wheel stud threads during cleaning
The hollow center design slides over wheel studs without requiring masking tape or thread protectors. Unlike wire brushes that can damage threads, these discs clean around studs safely while reaching every surface contour.
Fast Rust Removal - Silicon carbide abrasive cuts through corrosion quickly
Each disc features sharp silicon carbide mineral in a non-woven nylon web that removes rust and scale without excessive material removal. The open web structure resists loading and clogging for consistent performance throughout the disc life.
Quick-Change Efficiency - Roloc attachment system for fast disc swaps
The included Roloc holder connects to die grinders and right-angle tools for instant disc changes. No threading, no fumbling with attachments – just twist-on, twist-off productivity that keeps your brake jobs moving.
Perfect for These Applications
- Brake rotor replacement and hub surface preparation
- Fleet maintenance and commercial vehicle brake service
- Automotive shop brake jobs requiring precise hub cleaning
- Collision repair shops preparing brake components for reassembly
- Heavy-duty truck brake maintenance and overhaul
Specifications
Kit Contents | 5 Cleaning Discs + 1 Roloc Holder |
---|---|
Disc Diameter | 3 inches (76.2 mm) |
Abrasive Material | Silicon Carbide |
Construction | Non-woven Nylon Web |
Attachment Type | Roloc Quick-Change System |
Maximum RPM | 20,000 |
Compatible Tools | Die Grinders, Right-Angle Grinders |
Part Number | 21758 |
Get Professional Brake Hub Cleaning Results
Stop dealing with brake comebacks caused by rusty hub surfaces. This Scotch-Brite brake hub cleaning disc kit delivers the consistent surface preparation your brake jobs need. Each disc removes corrosion efficiently while the Roloc system keeps your workflow fast and productive.
Order your 3M brake hub cleaning kit today and experience the difference professional-grade tools make in your brake service quality.
Frequently Asked Questions
How does this compare to wire brushes for brake hub cleaning?
Unlike wire brushes that can damage wheel stud threads and create flying debris, these silicon carbide discs clean safely around studs without requiring masking. The non-woven construction won't clog like wire brushes and provides more consistent surface preparation throughout the disc life.
What tools do I need to use this brake hub cleaning disc kit?
You'll need a die grinder or right-angle grinder capable of accepting Roloc attachments. The included holder fits standard 1/4-inch collets and operates safely up to 20,000 RPM. Most automotive shops already have compatible tools.
Can these discs be used on aluminum brake hubs?
Yes, the silicon carbide abrasive works effectively on aluminum, steel, and cast iron brake hubs. The controlled abrasive action removes corrosion without excessive material removal, making it safe for all common brake hub materials.
How many brake jobs will one kit handle?
Each disc typically handles 8–12 brake hubs depending on corrosion severity. With 5 discs included, this kit provides enough capacity for 40–60 brake hubs, making it cost-effective for busy shops while ensuring consistent results on every job.
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