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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
High-Speed Steel Drill Bits
Jobbers' Length Round Shank | Short Length Round Shank |
Maintenance Length Round Shank 3-Flat Shank | Extended Length Round Shank |
Standard |
Split |
Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | Pkg. Qty. | Pkg. | |||
Jobbers' Length | ||||||||||||
Black Oxide | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Split | Chicago-Latrobe | 1 | 2901A132 | 000000 | ||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Split | Chicago-Latrobe | 6 | 2901A583 | 00000 | ||
Titanium Nitride (TiN) Coated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Split | Chicago-Latrobe | 1 | 29115A732 | 00000 | ||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Split | Chicago-Latrobe | 6 | 29115A832 | 00000 | ||
Titanium Aluminum Nitride (TiAlN) Coated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Split | Chicago-Latrobe | 1 | 3202A65 | 00000 | ||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Standard | Viking Norseman Drill | 1 | 8870A35 | 0000 | ||
| 23/64" | 0.3594" | 4 7/8" | 2.96" | Round | 23/64" | Standard | Viking Norseman Drill | 6 | 8870A135 | 00000 | ||
Short Length | ||||||||||||
Black Oxide | ||||||||||||
| 23/64" | 0.3594" | 3 1/8" | 1.21" | Round | 23/64" | Split | Chicago-Latrobe | 1 | 2896A33 | 0000 | ||
Titanium Nitride (TiN) Coated | ||||||||||||
| 23/64" | 0.3594" | 3 1/8" | 1.21" | Round | 23/64" | Split | Viking Norseman Drill | 1 | 2908A52 | 00000 | ||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 3 1/8" | 1.21" | Round | 23/64" | Standard | Chicago-Latrobe | 1 | 8947A132 | 0000 | ||
Maintenance Length | ||||||||||||
Black/Gold Oxide | ||||||||||||
| 23/64" | 0.3594" | 4 1/4" | 2.56" | Round/3-Flat | 23/64" | Split | Viking Norseman Drill | 1 | 87755A42 | 0000 | ||
| 23/64" | 0.3594" | 4 1/4" | 2.56" | Round/3-Flat | 23/64" | Split | Viking Norseman Drill | 6 | 87755A22 | 00000 | ||
Extended Length | ||||||||||||
Black Oxide | ||||||||||||
| 23/64" | 0.3594" | 6 3/4" | 3.71" | Round | 23/64" | Standard | ICS | 1 | 29315A144 | 00000 | ||
| 23/64" | 0.3594" | 8" | 4.96" | Round | 23/64" | Standard | Chicago-Latrobe | 1 | 29515A48 | 00000 | ||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 12" | 8.28" | Round | 23/64" | Standard | Dormer Pramet | 1 | 2939A27 | 00000 | ||
| 23/64" | 0.3594" | 18" | 12.28" | Round | 23/64" | Standard | Dormer Pramet | 1 | 2955A23 | 00000 | ||
Cobalt Steel Drill 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 | |||||||||||
| 23/64" | 0.3594" | 4 7/8" | 3.5" | Round | 23/64" | Split | Dormer Pramet | 27995A532 | 000000 | ||
Titanium Aluminum Nitride (TiAlN) Coated | |||||||||||
| 23/64" | 0.3594" | 4 7/8" | 3.5" | Round | 23/64" | Split | Chicago-Latrobe | 3069A94 | 00000 | ||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.48" | Hex | 23/64" | Split | Cle-Line | 4909N23 | 00000 | ||
| 23/64" | 0.3594" | 4 7/8" | 2.9" | Round | 23/64" | Split | Chicago-Latrobe | 3069A33 | 00000 | ||
Short Length | |||||||||||
Titanium Nitride (TiN) Coated | |||||||||||
| 23/64" | 0.3594" | 3 1/16" | 1.21" | Round | 23/64" | Split | Chicago-Latrobe | 2416A32 | 00000 | ||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 3 1/8" | 1.21" | Round | 23/64" | Split | Chicago-Latrobe | 28765A32 | 00000 | ||
Carbide Drill Bits
Jobbers' Length Round Shank | Short Length Round Shank |
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 | |||||||||||
| 23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Four Facet | Ultra Tool | 27515A57 | 000000 | ||
Titanium Aluminum Nitride (TiAlN) Coated | |||||||||||
| 23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Four Facet | Ultra Tool | 8879A87 | 00000 | ||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Four Facet | Ultra Tool | 2956A32 | 00000 | ||
Short Length | |||||||||||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 3" | 1" | Round | 23/64" | Four Facet | Ultra Tool | 2956A71 | 00000 | ||
Drill Bit Size Gauges
For System of Measurement | For Use With | For Drill Bit Size | Wd. | Ht. | Thk. | Material | Color | Mounting Hole Dia. | Each | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | Drills | 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2" | 2 1/2" | 6 1/2" | 5/64" | Steel | Silver | 1/8" | 8986A67 | 000000 |
Carbide-Tipped Drill Bits
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Jobbers' Length | |||||||||||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.9" | Round | 23/64" | Standard | ICS | 2940A29 | 000000 | ||
| 23/64" | 0.3594" | 4 7/8" | 2.9" | Round | 23/64" | Split | ICS | 31575A36 | 00000 | ||
Extended Length | |||||||||||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 6 3/4" | 3.53" | Round | 23/64" | Standard | ICS | 29465A27 | 00000 | ||
Carbide Drill Bits for Carbon Fiber, Fiberglass, and Graphite
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 | |||||||||||||
| 23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | 140° | Brad | Fluted | Ultra Tool | 2828A22 | 0000000 | ||
Drill Bit Guides
![]() | ![]() |
For Drill Bit Size | For Drill Bit Size Decimal Equiv. | Lg. | Wd. | Ht. | Material | Each | ||
|---|---|---|---|---|---|---|---|---|
| 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8" | 0.125", 0.1406", 0.1563", 0.1719", 0.1875", 0.2031", 0.2188", 0.2344", 0.25", 0.2656", 0.2813", 0.2969", 0.3125", 0.3281", 0.3438", 0.3594", 0.375" | 5 1/2" | 3/4" | 7/8" | Steel | 9550T14 | 000000 |
Carbide-Tipped Drill Bits for Hardened Steel
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Jobbers' Length | |||||||||||
Uncoated | |||||||||||
| 23/64" | 0.3594" | 5" | 1.43" | Round | 23/64" | Notched | Izar | 2973A52 | 000000 | ||
Short-Flute High-Speed Steel Drill Bits
High-Speed Steel Drill Bits for Plastic
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Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Angle | Drill Bit Point Type | Mfr. | Each | |||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 3.5" | Round | 23/64" | 60° | Standard | Onsrud | 27465A62 | 000000 | ||
Chip-Clearing High-Speed Steel Drill Bits
Jobbers' Length High Helix Flute Round Shank | Jobbers' Length Parabolic Flute Round Shank |
Extended Length Parabolic Flute Round Shank | Split |
Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Flute Type | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Jobbers' Length | ||||||||||||
Black Oxide | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.46" | High Helix | Round | 23/64" | Split | Dormer Pramet | 31115A62 | 000000 | ||
| 23/64" | 0.3594" | 4 7/8" | 2.78" | Parabolic | Round | 23/64" | Split | Chicago-Latrobe | 29925A32 | 00000 | ||
Titanium Nitride (TiN) Coated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.78" | Parabolic | Round | 23/64" | Split | Chicago-Latrobe | 29925A72 | 00000 | ||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.78" | Parabolic | Round | 23/64" | Split | Dormer Pramet | 2754A62 | 00000 | ||
Extended Length | ||||||||||||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 12" | 8.28" | Parabolic | Round | 23/64" | Split | Dormer Pramet | 29745A77 | 00000 | ||
Short-Flute Cobalt Steel Drill Bits
Shank | Each | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | 1-4 | 5-Up | |||
Jobbers' Length | ||||||||||||
Black Oxide | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 1.21" | Round | 23/64" | Split | Cleveland | 3146A133 | 000000 | 000000 | ||
Depth-Limiting Drill Stops
![]() |
For Drill Bit Size | For Drill Bit Size Decimal Equiv. | Overall Lg. | OD | Hex Key Size for Set Screw | Material | Each | |||
|---|---|---|---|---|---|---|---|---|---|
For Inch Drill Bits | |||||||||
| 23/64" | 0.3594" | 3/4" | 3/4" | 3/32" | Steel | 8865A213 | 00000 | ||
Chip-Clearing Cobalt Steel Drill Bits
Shank | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Flute Type | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Jobbers' Length | ||||||||||||
Titanium Nitride (TiN) Coated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 3.1" | Parabolic | Round | 23/64" | Split | Viking Norseman Drill | 3183A62 | 000000 | ||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 3.1" | Parabolic | Round | 23/64" | Split | Viking Norseman Drill | 29925A932 | 00000 | ||
M2 High-Speed Tool Steel Rod Sets
Includes | No. of Pieces | Dia. Tolerance | Mechanical Finish | Each | ||
|---|---|---|---|---|---|---|
| Sizes 1/16"-1/2" (×1/64ths increments) and a metal index case | 29 | -0.0002" to 0" | Precision Ground | 2952A5 | 0000000 |
Thread-Locking Threaded Inserts with Installation Tools
Thread Size | For Tap Thread Size | Installed Lg. | Drill Bit Size | For Max. Hole Dia. | Drive Style | No. of Inserts Included | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Standard Wall | ||||||||||
Black Phosphate-Coated Steel | ||||||||||
| 1/4"-20 | 7/16"-14 | 0.437" | 23/64" | 0.359" | Slotted | 10 | 95109A111 | 000000 | ||
Chip-Clearing High-Speed Steel Drill Bits for Aluminum, Brass, and Bronze
Shank | Each | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Flute Type | Type | Size | Drill Bit Point Type | Mfr. | 1-5 | 6-Up | |||
Jobbers' Length | |||||||||||||
Uncoated | |||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.78" | Low Helix | Round | 23/64" | Standard | Chicago-Latrobe | 2928A232 | 000000 | 000000 | ||
Undersized Hardened Multipurpose M2 High-Speed Tool Steel Rods
Dia. | Dia. Tolerance | Drill Bit Size | Lg. | Yield Strength | Hardness | Mechanical Finish | Each | ||
|---|---|---|---|---|---|---|---|---|---|
| 0.3594" | -0.0002" to 0" | 23/64" | 4 7/8" | Not Rated | Rockwell C60 (Extra Hard) | Precision Ground | 3009A135 | 00000 |
Tight-Tolerance Water-Hardening W1 Tool Steel Rods
Left-Hand High-Speed Steel Drill Bits
Jobbers' Length Round Shank | Split |
Shank | Each | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | 1-5 | 6-Up | |||
Jobbers' Length | ||||||||||||
Uncoated | ||||||||||||
| 23/64" | 0.3594" | 4 7/8" | 2.78" | Round | 23/64" | Split | ICS | 2876A341 | 000000 | 000000 | ||

































