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    40 Products

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

    Flared-Cup Grinding Wheel

    Straight 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)
    		4755N280000000
    3 3/4"1 1/2"1 1/4"9,6701/8"Boron NitrideSynthetic ResinType 11Flared CupLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N29000000
    4"1/4"1 1/4"9,0701/8"Boron NitrideSynthetic ResinType 1StraightLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N32000000
    5"1 3/4"1 1/4"7,2501/8"Boron NitrideSynthetic ResinType 11Flared CupLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N31000000
    6"1/4"1 1/4"6,0401/8"Boron NitrideSynthetic ResinType 1StraightLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N33000000
    6"3/8"1 1/4"6,0401/8"Boron NitrideSynthetic ResinType 1StraightLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N34000000
    7"1/4"1 1/4"5,1801/8"Boron NitrideSynthetic ResinType 1StraightLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N35000000
    7"1/2"1 1/4"5,1801/8"Boron NitrideSynthetic ResinType 1StraightLight Gray
    120 (Smooth)
    ,
    180 (Smooth)
    		4755N36000000
     

    Bench and Surface Grinder Cutoff Wheels for Hard Metal

    Image of Product. Front orientation. Cutoff Wheels. Bench and Surface Grinder Cutoff Wheels for Hard Metal.
    Image of Specification. Side View. Side1 orientation. Straight Grinding Wheel. Bench and Surface Grinder Cutoff Wheels for Hard Metal.

    Side

    View

    Made with boron nitride, second only in hardness to diamond, these wheels are highly wear resistant, so they easily cut steel with a Rockwell hardness of C50 or greater, including alloy steel, A2, D2, and T15 tool steel. While these wheels are not as hard as wheels made with diamond, they dissipate heat better.
    Warning: Use wheels that have a greater rpm rating than the no-load rpm of your tool.
    Grinding
    Wheel
    Material
    Thk.
    Arbor Hole
    Size
    Max. Rotation
    Speed, rpm
    Designation
    Shape
    Abrasive
    Body
    For Use On
    Grit
    Each
    6" Diameter
    1/32"1 1/4"6,045Type 1StraightBoron NitrideSteelHastelloy Nickel, Inconel Nickel, Tool Steel1004734N110000000
    3/64"1 1/4"6,045Type 1StraightBoron NitrideSteelHastelloy Nickel, Inconel Nickel, Tool Steel1004734N12000000
     
    8" Diameter
    3/64"1 1/4"4,535Type 1StraightBoron NitrideSteelHastelloy Nickel, Inconel Nickel, Tool Steel1004734N13000000
     
    10" Diameter
    3/64"1 1/4"3,625Type 1StraightBoron NitrideSteelHastelloy Nickel, Inconel Nickel, Tool Steel1004734N14000000
     

    Long-Life Grinding Bits for Metals

    Image of Product. Front orientation. Grinding Bits. Long-Life Grinding Bits for Metals .
    Similar to diamond, boron nitride is harder than aluminum oxide and lasts longer. Bits are also known as jig grinding pins and mandrels.
    Head diameter is measured at the widest point.
    Caution: As bit shank is exposed beyond 1/2", maximum safe rpm decreases significantly. Refer to ANSI standard B7.1. Use only accessories that have a greater rpm rating than the maximum speed of the grinder you choose.
    Cylinder
    Head
    Dia.
    Lg.
    Max. Rotation
    Speed, rpm
    Abrasive
    Material
    Overall
    Lg.
    Grit (Surface Texture)
    Each
    For Steel, Stainless Steel, and Iron
     
    1/8" Diameter Shank
    0.03"0.08"100,000Boron Nitride2 1/4"220 (Extra Smooth) Silver4338A12000000
    0.04"0.08"100,000Boron Nitride2 1/4"220 (Extra Smooth) Silver4338A1100000
    0.05"0.08"100,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1300000
    0.06"0.12"100,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1400000
    0.07"0.12"100,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1700000
    0.08"0.16"100,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1500000
    0.09"0.16"100,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1600000
    0.1"0.16"100,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1800000
    0.11"0.16"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A1900000
    0.12"0.16"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A4100000
    0.13"0.2"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A4200000
    0.14"0.2"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A2100000
    0.16"0.2"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A2200000
    1/4"1/4"50,000Boron Nitride2"150 (Smooth) Green4338A10100000
    1/4"1/2"50,000Boron Nitride2"150 (Smooth) Green4338A10200000
    3/8"1/4"50,000Boron Nitride2"150 (Smooth) Green4338A10300000
     
    1/4" Diameter Shank
    0.2"0.24"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A2400000
    0.24"0.28"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A4300000
    0.26"0.28"60,000Boron Nitride2 1/4"120 (Smooth) Silver4338A2600000
    0.32"0.32"30,000Boron Nitride2 1/4"120 (Smooth) Silver4338A2700000
    0.34"0.32"30,000Boron Nitride2 1/4"120 (Smooth) Silver4338A2800000
    0.39"0.39"30,000Boron Nitride2 1/4"120 (Smooth) Silver4338A4400000
    0.47"0.39"30,000Boron Nitride2 1/4"120 (Smooth) Silver4338A300000
    0.59"0.39"20,000Boron Nitride2 1/4"120 (Smooth) Silver4338A4500000
    0.73"0.39"20,000Boron Nitride2 1/4"120 (Smooth) Silver4338A3200000
     

    Handheld Dressing Sticks for Grinding Wheels

    Image of Product. Front orientation. Grinding Wheel Dressers. Handheld Dressing Sticks for Grinding Wheels.
    Also known as cleaning sticks, these can be used to sharpen a variety of abrasive wheels.
    Boron Nitride Abrasive—Boron nitride sticks are harder and last longer than aluminum oxide and silicon carbide sticks.
    For Use On
    Grit
    Shape
    Ht.
    Wd.
    Lg.
    Each
    Boron Nitride Abrasive
    Vitrified Bond Wheels1000Rectangle1/2"1/4"3"43645A210000000
     

    Dremel Quick-Change Rotary Tool Cutoff Wheels

    Image of Product. Front orientation. Rotary Tool Cutoff Wheels. Quick Change.
    Image of Product. Front orientation. Rotary Tool Arbors.

    Rotary Tool Arbors

    Swap accessories quickly and safely without tools. These wheels have a special arbor hole that work with a pull-twist-release locking mechanism (sold separately). They are also compatible with standard Dremel wheel arbors with a slotted-head-screw locking mechanism.
    Boron Nitride Abrasive—Boron nitride abrasive wheels remain sharp longer, stay cool, and won’t shrink. They are good for cutting nails, rebar, metal studs, threaded rod, conduit, metal HVAC duct, metal door jambs, and galvanized struts. These wheels last 20 times longer than aluminum oxide cutting wheels.
    Rotary Tool Cutoff Wheels
    Rotary Tool Arbors with
    Pull-Twist-Release Locking Mechanism
    Grinding
    Wheel
    Material
    Thk.
    Arbor Hole
    Size
    Max. Rotation
    Speed, rpm
    Designation
    Shape
    Abrasive
    Reinforcement
    Pkg.
    Qty.
    Pkg.
    Each
    For Stainless Steel, Steel, and Copper
     
    1 1/2" Diameter
    0.041"1/8"35,000Type 1StraightBoron NitrideFiberglass14344A640000004344A47000000
     
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