HSS-g ECO stepped drill set – Projahn with spiral groove

Step drill bit set HSS-G ECO – precise tool for clean drilling

The step drill bit set HSS-G ECO includes three high-performance drill bits in sizes 1 to 3 for precise drilling, countersinking and deburring work. The spiral flute geometry ensures smooth running, clean cutting edges and a long tool life.

The step drill bits enable multiple drilling diameters with just one tool. This eliminates the need for frequent drill bit changes, which accelerates workflows and reduces the effort required for repetitive drilling. The spiral flute reliably evacuates chips and supports smooth drilling progress. At the same time, it improves smooth running and contributes to a controlled cutting result.

Each subsequent step can be used for slight countersinking or deburring of the hole. This allows sharp edges to be finished cleanly directly after drilling. Additional tools are not required for many applications. The size 3 drill bit features a 3-flat shank. This improves power transmission and prevents slipping in the drill chuck, even under higher loads.

The three-piece tool is suitable for drilling in steel, non-ferrous metals, aluminium, plastics and acrylic glass. It therefore covers numerous areas of application in metal construction, electrical installation, assembly, maintenance and workshops.

Note: For a 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