Clear All
System of Measurement System of Measurement |
|---|
|
Size Size | Show |
|---|
|
Size Size | Hide |
|---|
Decimal Size Equivalent Decimal Size Equivalent |
|---|
|
For Use On For Use On |
|---|
|
|
Finish Finish |
|---|
|
Bit Style Bit Style |
|---|
 | Spiral Flute |
 | Parabolic Spiral Flute |
Length Class Length Class |
|---|
 | Jobbers' Length |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
|---|
Flute Direction Flute Direction |
|---|
 |
| Right Hand |
Individual/Set Individual/Set |
|---|
|
Shank Size Shank Size |
|---|
|
Shank Type Shank Type |
|---|
 | Round |
Material Material |
|---|
|
About Drill Bits
More
Drill Bit Decimal Size Equivalents
More
Drill Bits
Black Oxide
Black and Gold Oxide
Split
Standard
These jobbers'-length bits have the rigidity and length required for most applications.
Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 7.4 mm | 0.2913" | 109mm | 54.2mm | Round | 7.4mm | Standard | DIN 338 | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Black-and-Gold Oxide High-Speed Steel | ||||||||||
| 7.4 mm | 0.2913" | 111mm | 73mm | Round | 7.4mm | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 000000000 | 0000 |
Chip-Clearing Cobalt Steel Drill Bits
Uncoated
The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. 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. 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.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Metric—Parabolic Spiral Flute | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 7.4 mm | 0.2913" | 109mm | 69mm | Round | 7.4mm | Split | DIN 338 | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |