Four Spiral Flute Step Drill Bit, 1/4 - 3/4(9 Sizes) 1/4 Hex Shank Cobalt Step Drill Bit Fully Coated with TiAlN for Metal, Stainless Steel, Aluminum, Plastic

¡¾9 Sizes in 1 and Hex Shank¡¿: Our 1-piece cobalt step drill bit comes with 9 sizes to meet most drilling needs. Sizes includes 9 sizes: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, and 3/4. The hexagonal shank enhances clamping stability, is easy to replace, and is compatible with most chucks on the market.
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