With the Fein punch for the blk 3.5 nibbler, you cut cleanly and effortlessly through tough stainless steel with tensile strength ratings up to 800 N/mm². When your existing punch becomes worn, this replacement immediately restores your machine's cutting speed and precision. Its precise fit ensures seamless power transmission and distortion-free cutting in demanding sheet metals, making straight runs and curved profiles smooth and manageable. Equip your nibbler with this Fein punch to keep your metalworking projects running at peak performance.