Drill Bit Decimal Size Equivalents
More
About Countersinks
Countersinks cut a cone-shaped opening to install screws and rivets flush with a surface or hold workpieces between centers on a lathe. They can also be used for chamfering and deburring.
More
About Reamers
More
About Drill Bits
More
Quick-Change Carbide Drill Bit Sets
Make fast bit changes—each bit has the same shank diameter, eliminating the need for different collets to hold each size. Harder than high-speed steel, cobalt steel, and carbide-tipped bits, these maintain their sharp edges longer. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications. All are jobbers’ length so they have the rigidity and length required for most applications. A four-facet point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Drill Bit Sizes Included | Overall Lg. | Shank Size | Point Style | For Use On | Each | |
Inch | |||||||
|---|---|---|---|---|---|---|---|
Uncoated Carbide | |||||||
| 8 | 1/64"-1/8" (increments of 1/64") | 1 1/2" | 1/8" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Cobalt Steel 1/2" Diameter Reduced-Shank Drill Bit Sets
With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. A split point keeps the bit centered without a pilot hole. Also known as Silver and Deming bits, they have a 1/2" diameter shank.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Drill Bit Sizes Included | Shank Size | Point Style | For Use On | Each | |
Inch | ||||||
|---|---|---|---|---|---|---|
Uncoated Cobalt Steel | ||||||
| 8 | 9/16"-1" (increments of 1/16") | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000000 |
High-Speed Steel 1/2" Diameter Reduced-Shank Drill Bit Sets
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming, these bits have a 1/2" diameter shank.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than black-oxide drill bits.
Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Drill Bit Sizes Included | Shank Size | Point Style | Features | For Use On | Each | |
Inch | |||||||
|---|---|---|---|---|---|---|---|
Black-Oxide High-Speed Steel | |||||||
| 8 | 9/16"-1" (increments of 1/16") | 1/2" | Split | Flats on Shank | Steel, Iron, Stainless Steel | 00000000 | 0000000 |
| 8 | 9/16"-1" (increments of 1/16") | 1/2" | Standard | __ | Steel, Iron, Stainless Steel | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||
| 8 | 9/16"-1" (increments of 1/16") | 1/2" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Fast-Cutting Drill Bit Sets for Wood
The screw point draws the bit in, quickly boring holes without applying pressure.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Drill Bit Sizes Included | Shank Type | Point Style | For Use On | Includes | Each | |
Inch | |||||||
|---|---|---|---|---|---|---|---|
Black-Oxide Steel | |||||||
| 8 | 1 1/8"; 1 1/4"; 1 1/2"; 1 3/4"; 1"; 2 1/8"; 2 9/16" | Quick-Change Hex | Screw | Wood | 5 1/2" Long Extension | 0000000 | 0000000 |
High-Speed Steel Drill-Point Countersink Sets for Screws
Small drill points let you drill and countersink holes with the same tool. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.
For technical drawings and 3-D models, click on a part number.
82° Countersink Angle | ||||||||
|---|---|---|---|---|---|---|---|---|
| For Screw Size  | Number of Pieces | Number of Flutes | Number of Countersinking Ends | Shank Type | For Use On | Container Type | Each | |
Uncoated High-Speed Steel | ||||||||
| No. 5, No. 6, No. 8, No. 10, No. 12, 1/4", 5/16", 3/8" | 8 | 2 | 1 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Plastic Case | 00000000 | 0000000 |
Hole-Enlarging Drill-Bit Sets
Enlarge existing holes without changing the depth. These bits have flutes with a right-hand spiral and a right-hand cut. The flutes pull chips upward as they cut for use in blind holes.
For technical drawings and 3-D models, click on a part number.
Direction | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Sizes Included | Number of Pieces | Flute Style | Spiral | Cut | Container Type | For Use On | System of Measurement | Each | |
Black and Gold Oxide Tool Steel | ||||||||||
| 1/4", 5/16", 3/8", 25/64", 15/32", 1/2", 5/8", 3/4" | 1/4", 5/16", 25/64", and 15/32" Hole-Starting Bits; 3/8", 1/2", 5/8", and 3/4" Hole-Enlarging Bits | 8 | Spiral | Right Hand | Right Hand | Metal Case | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Inch | 00000000 | 0000000 |
Hex-Shank Tap Sets for Drills and Screwdrivers
Multiple tap sizes allow tapping a range of hole diameters. The taps in these sets connect directly to the included screwdriver and other tools that accept a 1/4" hex shank, such as drills and power screwdrivers. They're made of high-speed steel and are for use on most metal and plastic. With a plug chamfer, they're good for start-to-finish tapping, but they'll require space at the bottom of closed-end holes for chips to accumulate.
For technical drawings and 3-D models, click on a part number.
| No. of Pieces | Chamfer Type | Tap Sizes Included | No. of Flutes | Hex Shank Size | Includes | Each | |
Uncoated High-Speed Steel | |||||||
|---|---|---|---|---|---|---|---|
| 8 | Plug | M3 × 0.5 mm M4 × 0.7 mm M5 × 0.8 mm M6 × 1.0 mm M8 × 1.25 mm M10 × 1.5 mm | 4 | 1/4" | 1/4" Hex Shank Extension, 1/4" Bit Screwdriver | 0000000 | 0000000 |