McMaster-Carr logo
    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)
    25 Products

    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) Silver0000000000000
    0.04"0.08"100,000Boron Nitride2 1/4"220 (Extra Smooth) Silver000000000000
    0.05"0.08"100,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.06"0.12"100,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.07"0.12"100,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.08"0.16"100,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.09"0.16"100,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.1"0.16"100,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.11"0.16"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.12"0.16"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.13"0.2"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.14"0.2"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.16"0.2"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    1/4"1/4"50,000Boron Nitride2"150 (Smooth) Green0000000000000
    1/4"1/2"50,000Boron Nitride2"150 (Smooth) Green0000000000000
    3/8"1/4"50,000Boron Nitride2"150 (Smooth) Green0000000000000
     
    1/4" Diameter Shank
    0.2"0.24"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.24"0.28"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.26"0.28"60,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.32"0.32"30,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.34"0.32"30,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.39"0.39"30,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.47"0.39"30,000Boron Nitride2 1/4"120 (Smooth) Silver00000000000
    0.59"0.39"20,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
    0.73"0.39"20,000Boron Nitride2 1/4"120 (Smooth) Silver000000000000
     
    back to top