McMaster-Carr logo
    Filter by
    System of Measurement
    Arbor Hole Size
    Grinding Wheel Designation
    Thickness
    Abrasive Material
    Grit Rating
    Surface Texture
    Arbor Hole Thread Size
    Industrial Info Snippet
    Color
    Backup Pads Required
    Form
    Grinding Wheel Shape
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Abrasive Bond Material
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    34 Products

    High-Performance Grinding Wheels for Angle Grinders—Use on Metals

    Image of Product. Front orientation. Contains MultipleImages. Grinding Wheels. High-Performance Grinding Wheels for Angle Grinders—Use on Metals.
    A blend of ceramic alumina and zirconia alumina removes material at a 50% faster rate than our Long-Life Grinding Wheels. Wheels are also known as Type 27 wheels, raised-hub wheels, and grinding discs.
    Wheels are designed for grinding metal surfaces and removing weld seams. The 1/8" and 3/16" thick wheels can also be used for notching and cutting.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Wheel
    Each
    Package
    Dia.
    Thk.
    Arbor Hole
    Size
    Arbor Hole
    Thread Size
    Max. Rotation
    Speed, rpm
    Abrasive Material
    Abrasive Bond
    Material
    Designation
    Shape
    Backup
    Pads Req.
    Color
    Grit (Surface
    Texture)
    Each
    Pkg.
    Qty.
    Pkg.
    For Steel and Stainless Steel
     
    Unthreaded Arbor Hole
    3"1/4"3/8"—18,000Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A320000002544355A3210000000
    4"1/4"3/8"—15,280Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A36000002544355A361000000
    4"1/4"5/8"—15,280Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A37000002544355A371000000
    4 1/2"1/4"7/8"—13,580Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A43000002544355A431000000
    5"1/4"7/8"—12,225Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A46000002544355A461000000
    6"1/4"7/8"—10,000Ceramic Alumina/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A12000002044355A121000000
    7"1/4"7/8"—8,600Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A49000002044355A491000000
    9"1/4"7/8"—6,600Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A54000002044355A541000000
     
    Threaded Arbor Hole
    4 1/2"1/4"—5/8"-11
    		13,580Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A44000001044355A441000000
    5"1/4"—5/8"-11
    		12,225Ceramic Alumina/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A14000001044355A141000000
    7"1/4"—5/8"-11
    		8,600Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A51000001044355A512000000
    9"1/4"—5/8"-11
    		6,600Aluminum Oxide/Zirconia Alumina BlendSynthetic ResinType 27Raised HubNoBlack20 (Rough)44355A55000001044355A551000000
     

    Grinding Wheels for Straight Grinders

    Image of Product. Front orientation. Grinding Wheels. Grinding Wheels for Straight Grinders.
    Use these wheels for heavy material removal in one spot or along a weld seam. They are also known as Type 1 wheels and snagging wheels.
    Wheels are aluminum oxide, which is the most common abrasive used in grinding metal.
    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
    Material
    Abrasive Bond
    Material
    Designation
    Shape
    Color
    Grit (Surface
    Texture)
    Each
    For Stainless Steel and Iron
     
    Unthreaded Arbor Hole
    5"1/2"1/2"10,848Aluminum OxideAluminum OxideType 1StraightBlack20 (Rough)8733A13000000
     

    Grinding Wheels for Angle Grinders—Use on Soft Metals

    Image of Product. Front orientation. Contains MultipleImages. Grinding Wheels. Grinding Wheels for Angle Grinders—Use on Soft Metals.
    Bonded without any wax or rubber filler, these wheels resist material buildup. They are also known as Type 27 wheels, raised-hub wheels, and grinding discs.
    Wheels are aluminum oxide, which is the most common abrasive used in grinding metal. They are designed for grinding surfaces and removing weld seams.
    Caution: Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Wheel
    Each
    Package
    Dia.
    Thk.
    Arbor Hole
    Size
    Arbor Hole
    Thread Size
    Max. Rotation
    Speed, rpm
    Abrasive
    Material
    Abrasive Bond
    Material
    Designation
    Shape
    Backup
    Pads Req.
    Color
    Grit (Surface
    Texture)
    Each
    Pkg.
    Qty.
    Pkg.
    For Aluminum
     
    Unthreaded Arbor Hole
    4"1/4"5/8"—15,000Aluminum OxideSynthetic ResinType 27Raised HubNoBlack20 (Rough)44165A31000002544165A320000000
    4 1/2"1/4"7/8"—13,500Aluminum OxideSynthetic ResinType 27Raised HubNoBlack20 (Rough)44165A33000002544165A34000000
     
    Threaded Arbor Hole
    4 1/2"1/8"—5/8"-11
    		13,580Aluminum OxideSynthetic ResinType 27Raised HubNoBlack20 (Rough)44165A3500001044165A35100000
     

    Floor Sanding Discs

    Image of Product. Front orientation. Sanding Discs. Floor Sanding Discs.
    Smooth out floors using a commercial floor-buffing machines. The slotted hole makes installation easy—just line up the center of the disc with your machine and push into place.
    Cloth Abrasive Backing—Resist tearing and hold up to wet sanding better than paper-backed discs.
    Paper Abrasive Backing—Good for high-volume sanding where you'll go through lots of discs.
    Silicon Carbide Abrasive—The best choice for sanding concrete floors. You can also use them on wood floors, but they’ll wear out quicker than ceramic alumina discs.
    Grit—The lower the grit number, the rougher the finish and the duller the appearance. The higher the grit number, the more polished the finish and the more satin or mirrored the appearance.
    Center
    Hole
    Silicon Carbide Abrasive
    Dia.
    Grit
    Abrasive Backing
    Material
    For Use With
    Style
    Dia.
    For Use On
    Each
    For Rough Finish
    15"20Cloth, PaperFloor-Buffing MachinesSlotted2"Concrete, Stone, Wood47305A24400000
    16"20Cloth, PaperFloor-Buffing MachinesSlotted2"Concrete, Stone, Wood47305A2540000
    17"20Cloth, PaperFloor-Buffing MachinesSlotted2"Concrete, Stone, Wood47305A1110000
     
    back to top