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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
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.
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 | |||||||
33 | 1/2"-1" (increments of 1/64") | 1/2" | Split | Flats on Shank | Steel, Iron, Stainless Steel | 00000000 | 000000000 |
33 | 1/2"-1" (increments of 1/64") | 1/2" | Standard | __ | Steel, Iron, Stainless Steel | 0000000 | 00000000 |