Spiral Step Drill Bit 6–60 mm

🛠️ A high-speed-steel spiral step drill for making or enlarging holes through a sequence of marked diameters. Its stepped cutting profile covers twelve sizes from 6 to 60 mm in one tool.

Key features

• High-speed steel (HSS) construction.
• Spiral-flute step-drill design.
• Twelve diameter steps on one cutter.
• 13 mm shank.

Important measurements

• Diameter steps: 6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55 and 60 mm.
• Shank diameter: 13 mm.
• Product weight: approximately 640 g before packaging.

See the supplier’s dimension image for the tool’s shape and length reference. The 6–60 mm range describes the available hole diameters, not the shank size.

Applications and compatibility

For workshop drilling tasks that call for progressively larger holes. Choose equipment that accepts a 13 mm shank and supports the selected drilling diameter. Machine-model compatibility, suitable workpiece materials, maximum material thickness and cutting speeds are not specified in the supplier information. Confirm these requirements for your setup before use; no particular CNC machine, metal grade or woodworking application is guaranteed.

Package contents and variant

One spiral step drill, supplied in an OPP bag. One option is available: Spiral step drill. Drilling equipment, chuck and workpiece are not included.

🚚 FREE SHIPPING to the United States

Shipping is included in the displayed price. Ships from China with tracking. Current supplier estimates are 1–3 days processing and 5–11 days transit; delivery times may vary.

📦 Physical product

This is a physical drill bit delivered to you. It is not a digital design, CNC file or download.