The RUKO 101052H step drill bit features a 4 to 30 mm drilling range and is made of high-speed steel, with a total length of 105 mm. This sheet metal quick-helix drill bit is designed for efficient and precise work on metal surfaces. It is typically used for enlarging existing holes or creating new ones in thin materials. https://elecena.pl/product/28443630/ruko-101052h-step-drill-bit-4-30mm-hss-105mm-high-cutting-performance 2025-04-16 https://elecena.pl/product/28443630/ruko-101052h-step-drill-bit-4-30mm-hss-105mm-high-cutting-performance 2026-06-11 https://elecena.pl/product/28443630/ruko-101052h-step-drill-bit-4-30mm-hss-105mm-high-cutting-performance 2026-07-04 https://elecena.pl/product/28443630/ruko-101052h-step-drill-bit-4-30mm-hss-105mm-high-cutting-performance 2026-08-20