Step Drill Bit, 3/16 to 1-3/8 inch, 3/8 inch Triangular Shank, TiAlN Coating Cobalt High Speed Steel, Four Spiral Flute Step Bit for Metal, Stainless Steel, Aluminum, Wood, Plastic, Fiberglass

1-3/8 inch High-Speed Steel Step Drill Bit

This step drill bit provides 19 different hole diameters for maximum flexibility across your drilling projects. One purchase meets your needs—no constant tool changes required.

Our step bit is coated with TiAlN for high hardness and smooth cutting, and crafted from cobalt high-speed steel with heat treatment for superior strength and toughness. Designed for both professional metalworking and DIY projects, it delivers a long service life.

Four spiral flutes speed up chip evacuation for smoother, uninterrupted drilling, especially on hard materials. Our step drill bit for metal helps achieve cleaner, more precise holes.

The metal step drill bit for metal features a 118° design to provide accurate positioning and smoother starts. The sharp tip minimizes bit walking, ensuring each hole is drilled exactly where you want it.

This step drill bit for stainless steel is ready for wood, metal, plastic, and more—making it an all-in-one solution for your varied drilling needs.