System of Measurement System of Measurement |
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Material Material |
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Overall Length Overall Length |
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Point Angle Point Angle |
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Number of Flutes Number of Flutes |
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![]() | 3 |
Point Style Point Style |
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Split |
Length Class Length Class |
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![]() | Jobbers' Length |
Individual/Set Individual/Set |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Flute Direction Flute Direction |
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Right Hand |
Finish Finish |
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Shank Type Shank Type |
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![]() | Round |
Bit Style Bit Style |
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![]() | Spiral Flute |
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Smooth-Finish Carbide Drill Bits

Three cutting edges instead of the typical two enable these bits to drill holes with a smoother finish than other bits. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling. All are jobbers’ length so they have the rigidity and length required for most applications. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Shank Size | Point Style | For Use On | Each | |
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Uncoated Carbide | |||||||||
4.0 mm | 0.1575" | 55mm | 21.9mm | Round | 4mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 000000 |
4.2 mm | 0.1654" | 55mm | 21.9mm | Round | 4.2mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |