Heller Tools manufactures the ProXtreme 28255 0, a carbide metal concrete twist drill bit with a 10 mm diameter and a total length of 145 mm. This durable bit features a triangular shank, ideal for drilling in materials such as stone, masonry, and brickwork. It is commonly used for precise and efficient drilling in construction and renovation projects. https://elecena.pl/product/28930169/heller-28255-0-proxtreme-concrete-drill-bit-10mm-145mm-triangular-shank 2025-06-10 https://elecena.pl/product/28930169/heller-28255-0-proxtreme-concrete-drill-bit-10mm-145mm-triangular-shank 2026-07-11