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Grinding Wheels

While flap discs might be the popular option in the abrasives category, grinding discs or grinding wheels are the preferred choice when heavy material removal is required. Our grinding wheels and discs are engineered for aggressive stock removal and extra-long life. Roark Supply Inc. quality-made metal grinding discs are designed for exceptional precision and consistency on all applications. Providing the ultimate finishes, our grinding wheels and cutting tools are used by industry professionals around the world. Browse our high-performance abrasive grinding wheels fit to meet the highest requirements of any job.

We offer grinding discs in various sizes including 4.5”, 5”, 6”, 7” and 9”.

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Pearl 4.5" Silverline Depressed Center Wheels Pearl 4.5" Silverline Depressed Center Wheels

  • Material: Aluminum Oxide
  • For ferrous metals, iron, steel
  • Type 27 – Depressed center flat wheel
  • Less vibration / cooler grinding
  • Non-loading
  • Increased grinding efficiency

Our Price: $1.95
Pearl 4.5" and 5" Redline Max-A.O. Depressed Center Wheels Pearl 4.5" and 5" Redline Max-A.O. Depressed Center Wheels


  • Material: Aluminum Oxide
  • For ferrous metals; iron, steel & stainless steel
  • Type 27 – Depressed center flat wheel
  • Less vibration
  • Cooler grinding
  • Non-loading
  • Increased grinding efficiency

3M™ Silver 4.5" & 5" Ceramic Depressed Center Wheels 3M™ Silver 4.5" & 5" Ceramic Depressed Center Wheels


  • Premium performance in a value-packed wheel
  • Optimal balance of fast cutting and long life
  • Material: Ceramic
  • For ferrous metals; iron, steel & stainless steel
  • 4.5": 13,300 RPM
  • 5": 12,250 RPM
  • Contaminant free

Pearl 4.5" D.A. Series Aluminum Depressed Center Grinding Wheels Pearl 4.5" D.A. Series Aluminum Depressed Center Grinding Wheels

  • For aluminum soft non-ferrous metals, copper, brass, bronze
  • Exclusive non-loading formula
  • Type 27 – Depressed center wheel
  • Max RPM: 13,300

3M Cubitron II 4.5" Depressed Center Grinding Wheels 3M Cubitron II 4.5" Depressed Center Grinding Wheels

  • Material: Ceramic Grain
  • Precision-shaped grain engineered to cut faster than competitive ceramic products
  • Triangular shaped ceramic grain wears evenly, runs cook and optimized mineral breakdown
  • Increased wheel life and productivity
  • Rigid reinforced resin-bonded wheel slices through almost all materials including stainless steel
  • For heavy weld removal and heavy-duty grinding applications
  • Increased wheel life and productivity

Pearl 6", 7" and 9" Redline™ Max-A.O.™ Depressed Center Wheels Pearl 6", 7" and 9" Redline™ Max-A.O.™ Depressed Center Wheels


  • Material: Aluminum Oxide
  • For ferrous metals; iron, steel & stainless steel
  • Type 27 – Depressed center flat wheel
  • Less vibration
  • Cooler grinding
  • Non-loading
  • Increased grinding efficiency

2" and 3" Grinding Discs 2" and 3" Grinding Discs

  • For metal and steel
  • Widely used by welders and fabricators
  • High quality, double reinforced with pressed metal centers.

Bench Grinder Stones & Wheels Bench Grinder Stones & Wheels

  • Available in 6", 8" and 10" diameters
  • 6" stone available in 3/4" or 1" thickness
  • Comes in 24 Grit, 36 Grit, 46 Grit, 60 Grit, and 80 Grit.
  • High quality aluminum oxide and gray in color
  • 6" grinding stone: 4456 max rpm
  • 8" grinding stone: 3600 max rpm
  • 10" grinding stone: 2483 max rpm