Step drill set HSS-Co 5% ECO – Projahn with spiral groove

Step drill bit set HSS-Co 5% ECO – powerful tool for precise drilling work

The step drill bit set HSS-Co 5% ECO combines three high-quality drill bits made of high-speed steel with 5% cobalt content. The robust material quality and the spiral flute geometry enable clean drill holes as well as a long tool life during demanding applications in various materials.

The three drill bits in sizes 1 to 3 cover numerous drilling diameters and reduce the effort required for frequent tool changes. The spiral flute improves smooth running and supports consistent chip removal. This results in precise cutting edges and controlled drilling progress. At the same time, the special geometry helps to reduce tool wear and extend the operating time.

The multi-functionality of the steps is particularly practical. Each subsequent step can be used directly for countersinking or deburring. This allows drill holes to be cleanly finished in a single operation. The size 3 drill bit also features a 3-flat shank. This ensures reliable power transmission and prevents slipping in the drill chuck even under higher loads.

The tool is suitable for drilling in steel, non-ferrous metals, aluminium, plastics and acrylic glass. This makes the set a versatile solution for workshops, assembly companies, mechanical engineering and industrial manufacturing.

Note: For high cutting quality and durable drill bits, the use of a suitable coolant and lubricant is recommended.

Contents:
Size 1 step drill bit 4 – 12.0 mm
Size 2 step drill bit 6 – 20.0 mm
Size 3 step drill bit 6 – 30.0 mm