Grobet's full line of Swiss pattern files delivers superior performance. They are simply the best files you can buy. The finest heat tempered chrome alloy steel provides the “right” feel, action, and balance demanded by attentive craftsmen. The most advanced CNC equipment and the best available robotic technology ensures that Grobet files are manufactured to the highest standards of dimensional accuracy, cutting performance, and service life. All Grobet products adhere to strict Quality Control procedures at each level of manufacturing. Every finished tool is individually tested to ensure superior quality.