【Designed Specifically for Daiwa Reels】 This is a dedicated screwdriver designed for the special 4.0mm slotted screws (with a notch in the center) used in Daiwa baitcasting reels. It fits securely into screws that cannot be handled by general tools. 【Non-Slip Convex Design for Secure Fastening】 The protruding tip shape securely engages the countersink in the center of the screw, transmitting stable torque without slipping. You can safely disassemble without damaging the screw threads. 【Highly Durable, High-Quality Material Composition】 The screwdriver tip is made of steel with a titanium alloy coating, achieving excellent wear and corrosion resistance. The grip is made of lightweight and easy-to-handle aluminum alloy, designed to reduce fatigue even during long hours of work. 【Strong Compatibility with Stuck Screws】 Even body cover screws that are stuck and cannot be removed with ordinary screwdrivers can be smoothly removed with this special screwdriver, which efficiently transmits force. 【Ideal for Maintenance and Customization】 Perfect for maintaining reels that are easily damaged by seawater and sand. It supports various maintenance tasks such as parts replacement, disassembly, tuning, and overhaul.