3M S-13227 2" Aluminum Oxide Sanding Discs, 36 Grit, 25 Pack
Heavy-Duty Metal Grinding Performance - 2 Inch Aluminum Oxide Sanding Discs (S-13227, 25 Pack)
Professional-Grade 36 Grit Abrasive for Demanding Applications
When standard grinding discs wear out too quickly on tough metals, these 2-inch sanding discs deliver superior cutting power with 36 grit aluminum oxide abrasive, 25,000 RPM maximum speed rating, and 3x longer disc life than standard alternatives. The aggressive coarse grit cuts through hardened steel, cast iron, and heavy alloys without bogging down or losing effectiveness, perfect for welders, fabricators, and mechanics who need reliable material removal that keeps up with demanding shop schedules.
Key Features and Benefits
Perfect Applications for Industrial Use
These professional grinding discs excel in demanding metalworking situations where aggressive material removal is required:
- Weld seam grinding - Clean up and finish welded joints on steel fabrications
- Surface preparation - Prep metal surfaces for painting or coating applications
- Rust and scale removal - Eliminate oxidation from metal surfaces efficiently
- Metal shaping - Contour and shape hardened steel components
- Deburring operations - Remove sharp edges from cast iron parts
- General metal grinding - Compatible with all air-powered grinding tools
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 3M S-13227 |
| Disc Diameter | 2 inches |
| Grit Size | 36 (Coarse) |
| Abrasive Material | Aluminum Oxide |
| Backing Type | Resin |
| Quantity | 25 discs per pack |
| Maximum RPM | 25,000 |
| Attachment System | Roloc R-Type Backing |
| Tool Compatibility | Air Grinders, Rotary Tools with Roloc Pads |
Installation and Usage Instructions
- Install compatible Roloc R-type backing pad on your air grinder or rotary tool
- Align disc with backing pad and twist clockwise until securely seated
- Verify maximum tool speed does not exceed 25,000 RPM rating
- Apply consistent pressure for optimal material removal and disc life
- Remove by twisting counterclockwise when changing to different grit or application
Get Professional Results with Superior Quality
Stop wasting time with inferior sanding discs that wear out quickly. This 25-pack of professional-grade aluminum oxide discs keeps your shop running efficiently with consistent performance across multiple projects.
Order your 2 inch sanding discs today for reliable, high-speed metal grinding!
Frequently Asked Questions
What makes these better than standard grinding discs?
The resin backing provides superior durability compared to cloth-backed discs, lasting longer under high-speed grinding conditions. The aluminum oxide abrasive cuts faster and stays sharp longer than basic abrasives, reducing the total cost per job.
Are these compatible with my air grinder?
Yes, these discs work with any air grinder or rotary tool that accepts Roloc R-type backing pads. They're compatible with 3M backing systems and most aftermarket holders designed for quick-change grinding discs.
How do these compare to higher grit sanding discs?
The 36 grit provides much faster material removal than finer grits like 60 or 80. While the finish is rougher, these are designed for heavy grinding and prep work where speed matters more than surface smoothness. Follow up with finer grits for finishing if needed.
Can I use these on materials other than steel?
These work well on most metals including cast iron, hard alloys, and stainless steel. They're specifically designed for ferrous metals and may load up quickly on soft materials like aluminum or brass.
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