Four Spiral Flute Step Drill Bit, 3/16 - 7/8(12 Sizes) 1/4 Hex Shank Cobalt Step Drill Bit Fully Coated with TiAlN for Metal, Stainless Steel, Aluminum, Plastic

¡¾12 Sizes in 1 and Hex Shank¡¿: Our 1-piece cobalt step drill bit comes with 12 sizes to meet most drilling needs. Sizes includes 12 sizes: 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8. The hexagonal shank enhances clamping stability, is easy to replace, and is compatible with most chucks on the market.
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