Benchmark Abrasives 4-1/2" x .040" x 7/8" T27 depressed center thin cut-off wheels are built for fast, precise metal cutting with the convenience of a depressed-center profile. The ultra-thin .040" construction creates a narrow kerf with minimal material removal, making these wheels a strong choice for fabrication, welding, maintenance, automotive, and repair work where cutting speed and control matter.
Made with aluminum oxide abrasive grain, these Type 27 wheels are designed for cutting steel, stainless steel, and other approved metals. The depressed-center shape provides a different mounting profile than a flat Type 1 wheel while maintaining a cutting-only design for tubing, pipe, sheet metal, fasteners, fabricated assemblies, and everyday shop cutting.
With a 7/8" arbor and 13,500 RPM maximum rating, this wheel is designed for compatible 4-1/2" angle grinders equipped with the proper cut-off guard and mounting hardware. Pair it with the Benchmark Abrasives 4-1/2" Angle Grinder for an all-Benchmark cutting setup when the correct guard, flanges, and mounting configuration are used.
Bottom line, these cut off wheels offer LESS cutting resistance for fast work, LESS work piece waste, LESS vibration, LESS burrs and sparks and LESS dust than the competition.
Product Features
- Ultra-thin .040" profile for narrow, controlled cuts
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Type 27 depressed-center design for compatible angle grinder mounting setups
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Aluminum oxide abrasive grain for steel, stainless steel, and approved metals
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4-1/2" diameter for common angle grinder applications
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7/8" arbor for compatible mounting systems
- Rated up to 13,500 RPM
- Built for fabrication, welding, automotive, maintenance, and repair work
Materials & Applications
Recommended Materials:
- Steel
- Stainless Steel
- Other approved metals
Best For:
- Cutting tubing and pipe
- Cutting sheet metal
- Trimming bolts and fasteners
- Metal fabrication
- Weldment work
- Automotive and equipment repair
- Maintenance applications
- General-purpose metal cutting
Machine Compatibility
Designed for compatible 4-1/2" angle grinders that accept a 7/8" arbor Type 1 cut-off wheel and are equipped with the proper cut-off guard, flanges, and mounting hardware.
Compatible examples include:
- Benchmark Abrasives BMT-AGBC4570 4-1/2" Angle Grinder (11,000 RPM)
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Makita® 9557PB / 9557PBX1 (11,000 RPM)
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DEWALT® DWE402 (11,000 RPM)
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Bosch® GWS10-45 (11,500 RPM)
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Metabo® WEPBA 17-125 Quick RT DS (10,000 RPM, North American version)
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Milwaukee® 2880-20 (8,500 RPM)
Use the grinder manufacturer's cutting guard and flanges specified for this Type 27 wheel. Match wheel size, thickness and arbor, and keep the machine's maximum speed at or below the wheel rating. Other models may also be compatible when they meet the same wheel and setup requirements.
Cutting Performance
The .040" profile produces a narrow kerf with minimal material removal, helping deliver fast, controlled cuts across common fabrication and repair applications.
Unlike a Type 27 grinding wheel, this depressed-center wheel is designed strictly for cutting. Its shape does not authorize face grinding or side loading.
Safety Tips
- Use this wheel for cutting only. Never grind with the side or face of the wheel.
- Never exceed the wheel's 13,500 RPM maximum speed.
- Always use the proper cut-off wheel guard specified for the grinder and wheel configuration.
- Use the correct flanges and mounting hardware specified by the grinder manufacturer.
- Inspect the wheel before use and do not operate cracked, chipped, damaged, or improperly stored wheels.
- Keep the wheel straight in the cut and avoid side loading.
- Do not force or twist the wheel through the workpiece.
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