The handy tool designed specifically for hard-to-reach places such as inside control cabinets or small housing units. Drilling range: / Total length: 4.0 - 12.0 mm increasing by 1.0 mm / 48.0 mm 4.0 - 20.0 mm increasing by 2.0 mm / 58.0 mm 4.0 - 30.0 mm increasing by 2.0 mm / 72.0 mm Our Ruko stepped drill bits (double-edged) always feature: 1. Spiral flute for smooth running and a long life 2. Special three-face shaft for the best chuck fit 3. DIN1412C split point for immediate drilling without slipping 4. CBN grinding for a long service life https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2021-04-26 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2022-05-27 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2022-07-04 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2023-08-15 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2024-03-12 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2024-08-08 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2025-02-02 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2025-04-15 https://elecena.pl/product/17884945/a101038-hss-stepped-drill-set-spiral-flute-short 2026-07-15