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    7 Products
    About Drill Bits
    industrial info icon

    Compare material, finish, length class, and decimal size equivalents.

    High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Jobbers' Length, Morse Taper Shank.
    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Jobbers' Length

    Morse Taper Shank

    Extended Length

    Round Shank

    Standard

    Our basic drill bits are also the most versatile. Cut holes in a variety of metals, from the softest aluminum to the hardest steel.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Extended Length—Drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.
    Black Oxide—The dark finish increases wear resistance and reduces friction to improve chip flow, so these bits can last 50% longer than uncoated bits.
    Uncoated—The most economical option, uncoated bits perform best when used on low-carbon steel and aluminum. Polished to reduce friction, they're also known as bright finish bits.
    Shank
    Drill Bit
    Size, mm
    Decimal Size
    Equiv.
    Overall
    Lg., mm
    Max. Drilling
    Dp., mm
    Type
    Size
    Drill Bit
    Point Type
    Each
    Jobbers' Length
     
    Black Oxide
    8.5
    		0.3346"
    		15658Morse Taper
    		Morse 1Standard
    		3070A135000000
     
    Extended Length
     
    Black Oxide
    6.8
    		0.2677"
    		156102Round
    		6.8 mmStandard
    		88455A12300000
     
    Uncoated
    6.8
    		0.2677"
    		15688.7Round
    		6.8 mmStandard
    		3083A17100000
    7.0
    		0.2756"
    		15688.3Round
    		7 mmStandard
    		3083A17200000
     

    Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits, Extended Length, Round Shank.
    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    Extended Length

    Round Shank

    Standard

    Performance similar to solid carbide but at a lower price point. Like carbide bits, these are stronger than cobalt and high-speed steel and maintain their sharp edges when drilling abrasive material. However, when drilling tough metals like iron and hardened steel, upgrade to carbide for longer life.
    Extended Length—Drill through panels and thick workpieces with our longest bits. Their length is good for creating deep holes but makes them less rigid than other bits. As a result, they are more prone to wobbling or breaking, especially when drilling hard materials.
    Shank
    Drill Bit
    Size, mm
    Decimal Size
    Equiv.
    Overall
    Lg., mm
    Max. Drilling
    Dp., mm
    Type
    Size
    Drill Bit
    Point Type
    Each
    Extended Length
     
    Uncoated
    6.0
    		0.2362"
    		15681Round
    		6 mmStandard
    		29465A113000000
     

    Cobalt Steel Square End Mills with Two Milling Ends

    Image of Product. Front orientation. End Mills. Cobalt Steel Square End Mills with Two Milling Ends, 4 Flutes.

    4 Flutes

    When one end wears out, switch to the opposite end for two times the life of a standard cobalt steel end mill. With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron, hardened steel, titanium, and tool steel. Their square ends make them good for milling square slots, pockets, and edges. All are center cutting, allowing plunge cuts into a surface.
    4 Flutes—End mills with four flutes provide a finer finish and operate with less vibration when run at high speeds.
    Mill, mm
    Dia.
    Dia. Tolerance
    Shank Dia.,
    mm
    Lg. of
    Cut, mm
    Overall
    Lg., mm
    Flute
    Spacing
    Helix
    Angle
    For Use On
    End Mill Type
    Cut
    Style
    Each
    Uncoated Cobalt Steel
     
    4 Flutes
    20-0.0380 to 0.000022.247.6156Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8891A470000000
    22-0.0380 to 0.000022.247.6156Equal30°Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool SteelCenter CuttingSquare8891A48000000
     
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