Product Specification
7" x 1/4" x 7/8" T27 DEPRESSED CENTER GRINDING WHEEL - 800 PIECES
Built for fabrication shops, manufacturing operations, maintenance departments, and other high-volume metalworking environments, these 7" x 1/4" x 7/8" T27 Depressed Center Grinding Wheels are designed for aggressive stock removal with the durability needed for demanding daily grinding. The premium European aluminum oxide abrasive delivers dependable cutting action on stainless steel, carbon steel, cast iron, and other ferrous metals while maintaining a strong balance between grinding speed and service life.
Each wheel is manufactured with European aluminum oxide grain, Bakelite resin, and multiple layers of fiberglass reinforcement for strength and stability under high-speed grinding conditions. The Type 27 depressed-center profile provides clearance for the locking nut and is designed for use on compatible 7" right-angle grinders. This bulk package contains 800 grinding wheels, making it an excellent choice for shops that want dependable production inventory and volume pricing on a frequently used abrasive.
Product Specifications
| Specification |
Details |
| Wheel Diameter |
7" |
| Thickness |
1/4" |
| Arbor |
7/8" |
| Wheel Type |
T27 Depressed Center |
| Abrasive Grain |
Aluminum Oxide |
| Maximum RPM |
8,600 |
| Use |
Dry |
| Quantity |
800 Pieces |
Features
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Premium Aluminum Oxide Grain: Delivers aggressive, consistent grinding performance on steel, stainless steel, cast iron, and other ferrous metals.
-
Fast Stock Removal: Formulated for efficient material removal during weld grinding, edge work, beveling, and general fabrication.
-
Long Service Life: Balanced wheel formulation provides strong grinding performance while maintaining dependable wheel life.
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European Abrasive Grain: Manufactured with European aluminum oxide grain for consistent abrasive performance.
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Bakelite Resin Bond: Durable resin bond securely holds the abrasive structure together under demanding grinding conditions.
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Multiple Fiberglass Layers: Reinforced with multiple fiberglass layers for strength and stability during high-speed operation.
-
T27 Depressed-Center Profile: Recessed center provides clearance for the locking nut and supports proper grinding angles on compatible right-angle grinders.
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ANSI & EN Standards: Manufactured to meet applicable ANSI and EN abrasive-wheel standards.
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Bulk Shop Packaging: 800-piece quantity is designed for production shops, manufacturers, maintenance departments, and other high-consumption operations.
Applications & Performance
These wheels are engineered for aggressive grinding where material removal rate and durability are both important. The 1/4" thick bonded abrasive construction provides the strength needed for moderate to heavy grinding, while the aluminum oxide grain continually fractures to expose fresh cutting edges.
Ideal applications include:
- Weld grinding and removal
- Heavy stock removal
- Surface grinding
- Edge grinding
- Beveling
- Deburring
- Grinding metal tubing
- Grinding bar stock
- Grinding iron pipe
- Grinding rebar
- Grinding structural steel
- General fabrication
- Maintenance and repair
- Production grinding
Materials
Recommended materials include:
- Carbon steel
- Stainless steel
- Cast iron
- Titanium
- Nickel alloys
- Wrought iron
- Other ferrous metals
Machine Compatibility
Designed for compatible 7" angle grinders that accept a 7/8" arbor Type 27 grinding wheel and operate within the wheel's 8,600 RPM maximum.
Compatible examples include:
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Makita® GA7031Y (8,500 RPM)
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Makita® GA7060 (8,500 RPM)
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Makita® GA7021 (6,600 RPM)
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Milwaukee® 2785-20 (6,600 RPM)
Use the proper 7" Type 27 grinding guard and the manufacturer's flanges for a 1/4" thick, 7/8" arbor grinding wheel. The grinder's maximum rated speed must not exceed 8,600 RPM. Other models may also be compatible when they meet the same wheel and setup requirements.
Do not install this wheel on a smaller grinder simply because the arbor fits.
Safety Tips
- Never exceed the wheel's maximum rated speed of 8,600 RPM.
- Use only on machines designed for 7" Type 27 depressed-center grinding wheels.
- Always keep the correct grinding-wheel guard installed and properly positioned.
- Inspect each wheel before use and do not use wheels that are cracked, chipped, dropped, damaged, or otherwise compromised.
- Verify that the wheel is properly seated and securely mounted before starting the grinder.
- Allow the grinder to reach full operating speed before contacting the workpiece.
- Maintain a proper grinding angle and avoid excessive pressure.
- Do not use a grinding wheel for applications or mounting configurations for which it was not designed.
- Secure the workpiece before grinding.
- Always wear appropriate PPE, including safety glasses and a face shield, hearing protection, respiratory protection when required, gloves, and other protection appropriate for the application.
- Keep sparks directed away from people, combustible materials, cords, hoses, and other hazards.
