Security Tamper-Proof Bit Set with Magnetic Extension — compact, ready, reliable Key benefits Works with tamper-proof screws: Includes security bits designed for tamper-proof/star drive fasteners so you can access and remove screws that standard bits cannot. Faster, more precise work: Use with cordless screwdrivers and drills for secure engagement and reduced cam-out. Keeps bits ready and organized: Compact, pocket-sized retainer stores bits neatly and protects them in transit. Reaches tight spots: Magnetic extension bit holder holds bits firmly for one-handed use and improved reach into recessed or awkward fasteners. What it does Security bits for tamper-proof screws: Designed specifically for tamper-proof/star drive fasteners to give a precise fit and reduce stripping. Magnetic extension bit holder: Holds bits securely in place, improves control, and speeds bit changes. Compact retainer: Pocket-sized storage keeps a selection of bits organized and immediately available for field use. Compatibility and fit Compatible with cordless screwdrivers, drills, and standard bit holders used with variable-speed drivers. Designed to work as an accessory set for screwdrivers, drills, and bit drivers that accept interchangeable bits. Size, handling, and performance Pocket-sized retainer for portability and quick access on the job. Magnetic extension improves retention and control when using a drill or screwdriver. Intended for practical, everyday use where tamper-proof or star-drive screws are encountered. Practical use scenarios Field service and maintenance: Carry the compact retainer for quick access when repairing appliances, electronics, or devices secured with tamper-proof screws. Installation and security hardware work: Use the security bits with a cordless drill to install or remove star drive fasteners on fixtures and equipment. On-the-go DIY and trades: Keep the set in a toolbox, service bag, or pocket for fast one-handed bit changes and access in tight spaces. Why choose this set Solves the common problems of stripped heads, lost bits, and hard-to-reach tamper-proof screws by combining the correct security bit types with a magnetic extension and compact storage. Practical, portable, and ready to use with cordless screwdrivers and drills. Contains Security tamper-proof bits (suitable for star-drive applications) Magnetic extension bit holder Compact pocket-sized retainer to keep bits organized and accessible