McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    47 Products

    Shaped Norton Toolroom Grinding Wheels for Metals

    Image of Product. Front orientation. Contains MultipleImages. Grinding Wheels. Shaped Norton Toolroom Grinding Wheels for Metals, Flared-Cup Grinding Wheel.
    Image of Attribute. Front orientation. Contains Border. Grinding Wheels. Shaped Norton Toolroom Grinding Wheels for Metals.

    Flared-Cup Grinding Wheel

    The special shapes of these wheels provide more clearance than typical straight wheels.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Norton 38A Abrasive—38A white wheels are for light material removal. They stay cool during use, so they're a good choice for heat-sensitive applications. They are aluminum oxide, which is the most common abrasive used in grinding metal.
    Norton 32A Abrasive—32A purple wheels are for medium to heavy material removal. They are aluminum oxide.
    Norton 32AA Abrasive—32AA purple wheels are for medium to heavy material removal. They are a blend of aluminum oxide and ceramic aluminum oxide, which lasts up to twice as long as 32A wheels.
    Norton 5SG Abrasive—5SG blue wheels are for heavy material removal. They are ceramic aluminum oxide, which lasts up to five times as long as 32A wheels.
    Wheel
    Dia.
    Thk.
    Arbor Hole
    Size
    Max. Rotation
    Speed, rpm
    Abrasive Material
    Abrasive Bond
    Material
    Designation
    Shape
    Grit (Surface
    Texture)
    Norton Abrasive
    Grade
    Each
    38A White—VBE Bond
     
    For Steel and Iron
    4"1 1/2"1 1/4"5,730Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)K0000000000000
    5"1 3/4"1 1/4"4,585Aluminum OxideVitrified ClayType 11Flared Cup46 (Rough)K000000000000
    5"1 3/4"1 1/4"4,585Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)K000000000000
     
    32A Purple—VBE Bond
     
    For Steel and Iron
    3"1 1/4"3/4"7,640Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)K0000000000000
    4"1 1/2"1 1/4"5,730Aluminum OxideVitrified ClayType 11Flared Cup46 (Rough)K0000000000000
    4"1 1/2"1 1/4"5,730Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)J0000000000000
    4"1 1/2"1 1/4"5,730Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)K0000000000000
    4"1 1/2"1 1/4"5,730Aluminum OxideVitrified ClayType 11Flared Cup80 (Smooth)K0000000000000
    5"1 3/4"1 1/4"4,585Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)J00000000000000
    5"1 3/4"1 1/4"4,585Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)K00000000000000
    6"2"1 1/4"3,820Aluminum OxideVitrified ClayType 11Flared Cup46 (Rough)K00000000000000
    6"2"1 1/4"3,820Aluminum OxideVitrified ClayType 11Flared Cup60 (Rough)J00000000000000
     
    32AA Purple—VTR Bond
     
    For Steel, Stainless Steel, Iron, and Nickel
    4"1 1/2"1 1/4"5,730Aluminum Oxide CeramicVitrified ClayType 11Flared Cup46 (Rough)K0000000000000
    4"1 1/2"1 1/4"5,730Aluminum Oxide CeramicVitrified ClayType 11Flared Cup60 (Rough)J0000000000000
    5"1 3/4"1 1/4"4,585Aluminum Oxide CeramicVitrified ClayType 11Flared Cup60 (Rough)J00000000000000
     
    5SG Blue—VS Bond
     
    For Steel and Iron
    4"1 1/2"1 1/4"5,730Aluminum Oxide CeramicVitrified ClayType 11Flared Cup60 (Rough)J0000000000000
    5"1 3/4"1 1/4"4,585Aluminum Oxide CeramicVitrified ClayType 11Flared Cup60 (Rough)K00000000000000
     
    For Aluminum, Brass, Bronze, Carbides, Ceramics, Composites, Copper, Fiberglass, Glass, Plaster, Plastic, Rubber, Stone, and Titanium
    4"1 1/2"1 1/4"5,730Aluminum Oxide CeramicVitrified ClayType 11Flared Cup60 (Rough)L0000000000000
    4"1 1/2"1 1/4"5,730Aluminum Oxide CeramicVitrified ClayType 11Flared Cup80 (Smooth)J00000000000000
     

    Heavy-Removal Grinding Wheels for Angle Grinders—Use on Metals

    Image of Product. Front orientation. Contains MultipleImages. Grinding Wheels. Heavy-Removal Grinding Wheels for Angle Grinders—Use on Metals.
    A large grinding surface, combined with a thick layer of rough abrasive removes more material than other wheels. They are also known as Type 11 wheels, flared-cup wheels, snagging wheels, and cup stones.
    Wheels are often used to grind weld seams and remove flaws from castings.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    For Steel—Wheels for steel are aluminum oxide, which is the most common abrasive used in grinding metal.
    For Steel and Stainless Steel—Wheels for steel and stainless steel are zirconia alumina, which grinds faster and lasts longer than aluminum oxide.
    Full Backing—The full backing provides additional support.
    Wheel
    Partial Backing
    Full Backing
    Dia.
    Thk.
    Arbor Hole
    Thread Size
    Max. Rotation
    Speed, rpm
    Abrasive Material
    Designation
    Shape
    Backup
    Pads Req.
    Backing
    Material
    Color
    Grit (Surface
    Texture)
    Each
    Each
    For Steel and Stainless Steel
     
    Threaded Arbor Hole
    4"2"5/8"-11
    9,070Zirconium Oxide CeramicType 11Flared CupNoSteelBlack24 (Rough)00000000000000000000000000
    5"2"5/8"-11
    7,260Zirconium Oxide CeramicType 11Flared CupNoSteelBlack24 (Rough)000000000000000000000000
    6"2"5/8"-11
    6,050Zirconium Oxide CeramicType 11Flared CupNoSteelBlack24 (Rough)000000000000000000000000
     
    For Steel
     
    Threaded Arbor Hole
    4"2"5/8"-11
    9,070Aluminum OxideType 11Flared CupNoSteelBlack16 (Rough)0000000000000000000000
    5"2"5/8"-11
    7,260Aluminum OxideType 11Flared CupNoSteelBlack16 (Rough)0000000000000000000000
    6"2"5/8"-11
    6,050Aluminum OxideType 11Flared CupNoSteelBlack16 (Rough)0000000000000000000000
    6"2 1/2"5/8"-11
    6,050Aluminum OxideType 11Flared CupNoSteelBlack16 (Rough)0000000000000000000000
     

    Toolroom Grinding Wheels for Carbide, Ceramics, and Glass

    Image of Product. Front orientation. Contains Annotated, MultipleImages. Grinding Wheels. Toolroom Grinding Wheels for Carbide, Ceramics, and Glass, Flared-Cup Grinding Wheel.

    Flared-Cup Grinding Wheel

    A nickel-coated diamond grit and synthetic resin bond make these wheels extremely hard and wear resistant.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Wheel
    Dia.
    Thk.
    Abrasive
    Wd.
    Arbor Hole
    Size
    Max. Rotation
    Speed, rpm
    Abrasive
    Material
    Abrasive Bond
    Material
    Designation
    Shape
    Abrasive Surface
    Location
    Color
    Choose a Grit (Surface Texture)
    Each
    For Carbide, Ceramics, and Glass
     
    Unthreaded Arbor Hole
    3 3/4"1 1/2"1/16"1 1/4"9,675DiamondSynthetic ResinType 11Flared CupPartial FaceSilver
    100 (Smooth)
    ,
    150 (Smooth)
    ,
    220 (Extra Smooth)
    000000000000000
    3 3/4"1 1/2"1/8"1 1/4"9,675DiamondSynthetic ResinType 11Flared CupPartial FaceSilver
    100 (Smooth)
    ,
    150 (Smooth)
    ,
    220 (Extra Smooth)
    00000000000000
    5"1 3/4"1/8"1 1/4"7,250DiamondSynthetic ResinType 11Flared CupPartial FaceSilver
    100 (Smooth)
    ,
    150 (Smooth)
    ,
    220 (Extra Smooth)
    00000000000000
     

    Heavy-Removal Grinding Wheels for Angle Grinders—Use on Nonmetals

    Image of Product. Front orientation. Contains MultipleImages. Grinding Wheels. Heavy-Removal Grinding Wheels for Angle Grinders—Use on Nonmetals.
    Wheels have a large surface area and a thick layer of rough abrasive for heavy material removal on concrete and stone. They are also known as Type 11 wheels, flared-cup wheels, snagging wheels, and cup stones.
    Wheels are silicon carbide, which won't generate much heat.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Full Backing—The full backing provides additional support.
    Wheel
    Partial Backing
    Full Backing
    Dia.
    Thk.
    Arbor Hole
    Thread Size
    Max. Rotation
    Speed, rpm
    Abrasive
    Material
    Designation
    Shape
    Backing
    Material
    Backup
    Pads Req.
    Color
    Grit (Surface
    Texture)
    Each
    Each
    For Concrete and Stone
     
    Threaded Arbor Hole
    4"2"5/8"-11
    9,070Silicon CarbideType 11Flared CupSteelNoBlack16 (Rough)000000000000000000000000
    5"2"5/8"-11
    7,260Silicon CarbideType 11Flared CupSteelNoBlack16 (Rough)0000000000000000000000
    6"2"5/8"-11
    6,050Silicon CarbideType 11Flared CupSteelNoBlack16 (Rough)0000000000000000000000
    6"2 1/2"5/8"-11
    6,050Silicon CarbideType 11Flared CupSteelNoBlack16 (Rough)0000000000000000000000
     

    Toolroom Grinding Wheels for Hardened Steel

    Image of Product. Front orientation. Contains MultipleImages. Grinding Wheels. Toolroom Grinding Wheels for Hardened Steel, Flared-Cup Grinding Wheel.

    Flared-Cup Grinding Wheel

    Made with boron nitride, second in hardness to diamond, these wheels are highly wear resistant and easily cut difficult-to-grind steel parts. While they’re not as hard as diamond, they dissipate heat better.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Wheel
    Dia.
    Thk.
    Arbor Hole
    Size
    Max. Rotation
    Speed, rpm
    Abrasive
    Wd.
    Abrasive
    Material
    Abrasive Bond
    Material
    Designation
    Shape
    Color
    Choose a Grit (Surface
    Texture)
    Each
    For Hardened Steel
     
    Unthreaded Arbor Hole
    3 3/4"1 1/2"1 1/4"9,6701/16"Boron NitrideSynthetic ResinType 11Flared CupLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    00000000000000
    3 3/4"1 1/2"1 1/4"9,6701/8"Boron NitrideSynthetic ResinType 11Flared CupLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    0000000000000
    5"1 3/4"1 1/4"7,2501/8"Boron NitrideSynthetic ResinType 11Flared CupLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    0000000000000
     
    back to top