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    32 Products

    Drill Bits for Wire Installation

    Feed electrical wire, data cables, and phone lines through walls with the same tool used to make the hole. Once you've drilled, insert wire through the bit's hollow shaft to the other side of the wall. These are simpler to use than flexible-shaft bits since you do not need to strip the end of the wire. Also known as bell hanger bits.
    Round Shank—Fit in the chuck of drill presses and portable drills.
    Black-Oxide High-Speed Steel—Wear and heat resistant, these bits are versatile for use on a range of materials.
    Black-Oxide Carbide-Tipped Steel—Hard enough to drill through masonry and concrete as well as wood.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Drill Bit
    Point Type
    No. of
    Flutes
    Each
    Black-Oxide High-Speed Steel
     
    Image of ProductInUse. Front orientation. Contains Annotated. Drill Bits. Drill Bits for Wire Installation, Round Shank.
    Round Shank
    21/64"0.328"18"3.31"5/16"Standard20000000000000
    21/64"0.328"28"3.31"5/16"Standard2000000000000
    21/64"0.328"36"3.31"5/16"Standard2000000000000
    25/64"0.39"18"3.88"3/8"Standard2000000000000
    25/64"0.39"28"3.88"3/8"Standard2000000000000
    25/64"0.39"36"3.88"3/8"Standard2000000000000
    29/64"0.453"18"4.19"7/16"Standard2000000000000
    29/64"0.453"28"4.19"7/16"Standard2000000000000
    29/64"0.453"36"4.19"7/16"Standard2000000000000
    33/64"0.515"18"4.81"1/2"Standard2000000000000
    33/64"0.515"28"4.81"1/2"Standard2000000000000
    33/64"0.515"36"4.81"1/2"Standard2000000000000
     
    Black-Oxide Carbide-Tipped Steel
     
    Image of ProductInUse. Front orientation. Contains Annotated. Drill Bits. Drill Bits for Wire Installation, Round Shank.
    Round Shank
    21/64"0.328"18"4"5/16"Standard2000000000000
    21/64"0.328"28"4"5/16"Standard2000000000000
    21/64"0.328"36"4"5/16"Standard2000000000000
    7/16"0.438"18"4"3/8"Standard2000000000000
    7/16"0.438"28"4"3/8"Standard2000000000000
    7/16"0.438"36"4"3/8"Standard2000000000000
    9/16"0.563"18"4"1/2"Standard2000000000000
    9/16"0.563"28"4"1/2"Standard2000000000000
    9/16"0.563"36"4"1/2"Standard2000000000000
     

    Flexible-Shaft Drill Bits for Wire Installation

    Image of ProductInUse. Front orientation. Drill Bits. Flexible-Shaft Drill Bits for Wire Installation.
    Image of Product. Front orientation. Contains Inset. Drill Bits. Flexible-Shaft Drill Bits for Wire Installation, Round Shank.

    Round Shank

    Drill inside walls and between floors to install electrical wiring without cutting extra access holes. The shaft on these bits flexes for a long reach in any direction. To install wire, first strip the end and attach it to the small hole at the tip of the bit. Then pull wire back through the drilled hole. Also known as bell hanger bits.
    Round Shank—Fit in the chuck of drill presses and portable drills.
    Powder-Coated Steel—The dark coating protects against scratches and rust when you're not using the bit.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Shaft
    Dia.
    No. of
    Flutes
    Each
    Powder-Coated Steel
     
    Round Shank
    3/8"0.375"54"53"3/16"3/16"2000000000000
    3/8"0.375"72"71"3/16"3/16"200000000000
    1/2"0.5"54"53"1/4"3/16"200000000000
    1/2"0.5"72"71"1/4"3/16"200000000000
    9/16"0.5625"54"53"1/4"3/16"200000000000
    9/16"0.5625"72"71"1/4"3/16"200000000000
    5/8"0.625"54"53"1/4"3/16"200000000000
    3/4"0.75"54"53"1/4"1/4"200000000000
    1"1"54"53"1/4"1/4"200000000000
     
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