Filter by
System of Measurement
Drill Bit Size
Length Class
Material
Shank Type
Flute Direction
DFARS Specialty Metals
Export Control Classification Number (ECCN)
REACH
RoHS
Machine Taper Number
Bit Style
Flute Type
Sold As
Finish
Morse Taper Diameter
Specifications Met
About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Cobalt Steel 1/2" Diameter Reduced-Shank Drill Bits
Uncoated
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.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Metric | |||||||||
Uncoated Cobalt Steel | |||||||||
21.5 mm | 0.8465" | 152mm | 58mm | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Metric | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 21.5 mm | 0.846" | 2 | 0.7" | 248mm | 86mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 0000000 | 000000 |