About Drill Bits
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Drill Bit Decimal Size Equivalents
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Chip-Clearing Carbide Drill Bits
The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. For the highest accuracy and longest tool life, these solid-carbide bits 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.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch—Parabolic Spiral Flute | |||||||||
Uncoated Carbide | |||||||||
9/64" | 0.1406" | 2 29/32" | 1.56" | Round | 9/64" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
9/64" | 0.1406" | 2 29/32" | 1.56" | Round | 9/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Wire Gauge—Parabolic Spiral Flute | |||||||||
Uncoated Carbide | |||||||||
29 ga. | 0.136" | 2 29/32" | 1.56" | Round | 0.1358" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
28 ga. | 0.1405" | 2 29/32" | 1.56" | Round | 0.1406" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
29 ga. | 0.136" | 2 29/32" | 1.56" | Round | 0.1358" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
28 ga. | 0.1405" | 2 29/32" | 1.56" | Round | 0.1406" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |