After damage to a USB hard drive enclosure by cheap tool I ordered this product. The bits of the holder and the packaging do what materials and workmanship are concerned, a very high-quality impression. The color coding of the different bit types facilitates the selection enormous during use. The tool extent enough for complete disassembly of a 3.5-inch HDD in their items ;-). Conclusion: A Qualitätspodukt with very good price-to-performance ratio.