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    22 Products
    About Drill Bits
    industrial info icon

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

    Material

    Material

    High-Speed Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. High-Speed Steel Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.

    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.
    Short Length—The most rigid bits for drilling the straightest holes.
    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.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.
    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
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Black Oxide
    9/16"
    		0.5625"
    		6 5/8"3.96"Round
    		9/16"Standard
    		Chicago-Latrobe2931A47000000
     
    Titanium Nitride (TiN) Coated
    9/16"
    		0.5625"
    		6 5/8"3.96"Round
    		9/16"Standard
    		Chicago-Latrobe3022A6600000
     
    Uncoated
    9/16"
    		0.5625"
    		6 5/8"3.96"Round
    		9/16"Standard
    		Viking Norseman Drill8870A4900000
     
    Short Length
     
    Uncoated
    9/16"
    		0.5625"
    		4"1.65"Round
    		9/16"Standard
    		Chicago-Latrobe8947A24400000
     
    Extended Length
     
    Black Oxide
    9/16"
    		0.5625"
    		8 1/4"4.03"Round
    		9/16"Standard
    		Chicago-Latrobe29315A16500000
    9/16"
    		0.5625"
    		12"7.87"Round
    		9/16"Standard
    		Dormer Pramet2939A4200000
    9/16"
    		0.5625"
    		18"11.87"Round
    		9/16"Standard
    		Dormer Pramet2955A37000000
     
    Titanium Nitride (TiN) Coated
    9/16"
    		0.5625"
    		8 1/4"4.88"Round
    		9/16"Standard
    		Dormer Pramet28965A81800000
     
    Uncoated
    9/16"
    		0.5625"
    		8 1/4"4.88"Round
    		9/16"Standard
    		Dormer Pramet2939A8400000
     

    Cobalt Steel Drill Bits

    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Jobbers' Length, Round Shank.
    Image of Product. Front orientation. Drill Bits. Cobalt Steel Drill Bits, Extended Length, Round Shank.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Jobbers' Length

    Round Shank

    Extended Length

    Round Shank

    Split

    Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.
    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.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated and oxide-coated bits, especially on tough materials like hardened steel and nickel.
    Titanium Aluminum Nitride (TiAlN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron, titanium, and fiberglass.
    Uncoated—Polished to eject chips, these are also known as bright finish bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    9/16"
    		0.5625"
    		6 5/8"4.81"Round
    		9/16"Split
    		Dormer Pramet27995A546000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    9/16"
    		0.5625"
    		6 5/8"3.64"Round
    		9/16"Split
    		Guhring2753A157000000
     
    Uncoated
    9/16"
    		0.5625"
    		6 5/8"3.9"Round
    		9/16"Split
    		Chicago-Latrobe3069A8400000
     
    Extended Length
     
    Uncoated
    9/16"
    		0.5625"
    		8 1/4"3.75"Round
    		9/16"Split
    		Dormer Pramet3063A14600000
    9/16"
    		0.5625"
    		12"9"Round
    		9/16"Split
    		Republic Drill3168A38000000
     

    Carbide-Tipped Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits, Short Length, Round Shank.

    Short Length

    Round Shank

    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits, Extended Length, Round Shank.

    Extended Length

    Round Shank

    Image of Specification. Standard. Front orientation. Contains Border. Standard Point. For Metal.
    Image of Specification. Split. Front orientation. Contains Border. Split Point. For Metal.

    Standard

    Split

    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.
    Short Length—The most rigid bits for drilling the straightest holes.
    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
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Short Length
     
    Uncoated
    9/16"
    		0.5625"
    		4"1.68"Round
    		9/16"Standard
    		Izar28805A239000000
    9/16"
    		0.5625"
    		4"1.68"Round
    		9/16"Split
    		Izar2750A3700000
     
    Extended Length
     
    Uncoated
    9/16"
    		0.5625"
    		8 1/4"4.03"Round
    		9/16"Standard
    		ICS29465A4200000
     

    Carbide Drill Bits

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    The hardest and most wear-resistant drill bits you can buy. Carbide bits stay sharp at high temperatures and faster speeds for the best performance on hard and difficult-to-machine materials. They last 10 to 20 times longer than their closest alternative, cobalt steel. Carbide can be brittle, however, so these bits require a rigid machine tool holder to prevent breakage and should not be used in hand drilling applications.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Titanium Nitride (TiN) Coated—Drill at higher speeds and last longer than uncoated bits, especially on materials like hardened steel, iron, and stainless steel.
    Titanium Aluminum Nitride (TiAlN) Coated—No drill bits last longer. These are the best for high-speed, high-temperature drilling of very hard and abrasive materials, including titanium and fiberglass.
    Uncoated—Excellent for a range of materials but won't last as long as coated bits.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Mfr.
    Each
    Jobbers' Length
     
    Titanium Nitride (TiN) Coated
    9/16"
    		0.5625"
    		6"3.2"Round
    		9/16"Four Facet
    		Ultra Tool27515A650000000
     
    Titanium Aluminum Nitride (TiAlN) Coated
    9/16"
    		0.5625"
    		6"3.2"Round
    		9/16"Four Facet
    		Ultra Tool8879A95000000
     
    Uncoated
    9/16"
    		0.5625"
    		6"3.2"Round
    		9/16"Four Facet
    		Ultra Tool2956A76000000
     

    Carbide-Tipped Drill Bits for Hardened Steel

    Image of Product. Front orientation. Drill Bits. Carbide-Tipped Drill Bits for Hardened Steel, Jobbers' Length, Round Shank.

    Jobbers' Length

    Round Shank

    Straight flutes withstand the heavy pressure needed to penetrate hardened steel. These bits cut more aggressively and resist stress better than spiral-flute bits. A lower-priced alternative to solid carbide, they stay sharp when drilling abrasive material but won’t last as long.
    Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit
    Point Type
    Mfr.
    Each
    Jobbers' Length
     
    Uncoated
    9/16"
    		0.5625"
    		6"2.25"Round
    		9/16"Notched
    		Izar2973A44000000
     

    Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite

    Image of Product. Front orientation. Drill Bits. Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite, Jobbers' Length.

    Jobbers' Length

    Cut clean holes in abrasive material without fraying or delaminating the surface. Made of carbide, these bits resist wear to retain a sharp edge, even after after hundreds of cuts.
    Shank
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Point
    Angle
    Drill Bit
    Point Type
    Bit
    Style
    Mfr.
    Each
    Jobbers' Length
     
    Uncoated
    9/16"
    		0.5625"
    		6"3.2"Round
    		9/16"140°Brad
    		FlutedUltra Tool2828A310000000
     
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