164-piece tool insert with 1/4' and 1/2' socket inserts. Shock-resistant embedded in high-density soft foam insert (EVA). Missing tools can be easily identified at a glance. 1/4' inserts range from 4 to 14 mm. 1/2' inserts range from 10 to 32 mm. Dimensions (L x W x H): 600 x 400 x 40 mm. Kraftwerk: Quality since 1979. Since 1979, Kraftwerk has been one of the leading tool manufacturers and importers in Switzerland and enjoys high recognition. Kraftwerk tools are manufactured in ISO-certified factories that are carefully selected under strict quality control. In addition to high quality standards, environmental compatibility of the products is prioritized. Kraftwerk tools are highly valued by professional craftsmen from various industries.