McMaster-Carr logo
    Filter by
    Drive Style
    Industrial Info Snippet
    System of Measurement
    Tip Style
    Driver Style
    Tool Type
    Performance
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    Hex Shank Size
    Shank Size
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Container Type
    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)
    5 Products

    Tri-Groove Bit Sets

    Image of Product. Front orientation. Screwdriver Bits. Tri-Groove Bit Sets.
    The bits in these sets turn tri-groove screws. They're commonly used to fasten signs, lighting fixtures, and other types of public property.
    Quick-Change Hex Shank—Lock these bits directly into power tools. They won't wobble as much as bits paired with an adapter, so they are the best choice for high-precision tasks.
    High-Speed Steel—Harder and more heat resistant than plain steel. These bits withstand the intense friction of high-speed power tools without deforming or softening.
    Components
    Included
    Bits Included
    Material
    Container
    Type
    Each
    For Power Tools
     
    1/4" Quick-Change Hex Shank Size
    4 BitsTri-Groove: 0.375" O'all Dia. for No. 1-No. 8 (1 3/8" O'all Lg.)
    Tri-Groove: 0.5" O'all Dia. for No. 5-No. 11 (1 1/4" O'all Lg.)
    Tri-Groove: 0.75" O'all Dia. for No. 12-No. 13, 5/16" (1 1/4" O'all Lg.)
    Tri-Groove: 0.875" O'all Dia. for No. 8-No. 12, 1/4" (1 1/4" O'all Lg.)    		High-Speed SteelPlastic Pouch7309A25000000
     

    Tri-Groove Bits

    Image of Product. Front orientation. Screwdriver Bits. Tri-Groove Bits.
    Turn tri-groove screws with these bits. They're commonly used to fasten signs, lighting fixtures, and other types of public property.
    Quick-Change Hex Shank—Lock these bits directly into power tools. They won't wobble as much as bits paired with an adapter, so they are the best choice for high-precision tasks.
    Steel—Best for dry environments, since moisture will cause these bits to rust.
    Overall
    For Screw Size
    Lg.
    Dia.
    Material
    Each
    For Power Tools
     
    1/4" Quick-Change Hex Shank Size
    No. 1, No. 2, No. 3, No. 4
    		1 3/8"3/8"Steel
    		7309A21000000
    No. 5, No. 6, No. 7, No. 8, No. 9, No. 10, No. 11
    		1 1/4"1/2"Steel
    		7309A2200000
    No. 8, No. 9, No. 10, No. 11, No. 12, 1/4"
    		1 1/4"7/8"Steel
    		7309A2300000
    No. 12, 5/16"
    		1 1/4"3/4"Steel
    		7309A2400000
     
    back to top