workmanship: The screwdriver bit set features a beveled end that is easily inserted into the mount, precisely manufactured and machined to exact dimensions, and designed to protect drills and fixings from damaged edges. Practical to use: Made of strong, wearresistant chrome vanadium steel, this set is reliable and reusable for a long time. Multipurpose: Contains 5 unique bits, including unusual and tamperproof bits that can loosen tamperproof screws that a normal screwdriver cannot. Wide range of applications: Universally used for a 6.35 mm joint drill, ideal for electronic devices. Use case: Electronics or maintenance involving tamperproof screws, where precise fit and edge protection are important. Use case: Assembly or servicing of devices in confined or delicate environments, requiring durable bits that resist wear. Use case: General DIY and hardware tasks that involve stubborn or security screws and require reliable, reusable tools.