1. Impact Bits: The Ultimate Tool for Tackling Rusted and Over-Tightened Screws Impact bits are specially engineered for high-torque, heavy-duty tasks. Unlike standard bits, these high-performance accessories feature a reinforced core, optimized stress distribution, and vibration-dampening design that allows them to withstand repeated impacts without breaking or slipping. While ordinary screwdriver bits work fine for routine screw installation and removal, The Impact Bits are indispensable in scenarios where rusted, over-tightened, or corroded screws must be removed—ideal for automotive repair, industrial equipment disassembly, and heavy construction work. 2. JIS Impact Bits: Tailor-Made for Japanese Equipment Japanese vehicles and motorcycles, including brands like Honda, Yamaha, Suzuki, and Kawasaki, use screws that adhere to the Japanese Industrial Standard (JIS). The design of these screws—especially their cross-slot angles—differs subtly from the more common Phillips standard. Standard bits can easily cause cam-out or damage when used on these screws. That's where JIS Impact Bits come in; they're custom-built to precisely match JIS specifications, ensuring the screws remain intact even after years of exposure to the elements, corrosion, and accumulated grime. This precise compatibility makes them the best choice for efficient removal without damaging screw heads, ultimately preventing costly repairs. 3. Our JIS Impact Bits – A Perfect Fusion of Technology, Craftsmanship, and Performance Strict Standards: Manufactured 100% to the JIS B4633 standard, guaranteeing precise slot geometry that perfectly fits screws on Japanese vehicles. Premium Materials: Crafted from high-grade S2 alloy steel and precisely heat treated to enhance surface hardness and core toughness, offering up to 40% higher torsional strength than conventional chrome vanadium steel. Extended Protection: The surface is treated with a black phosphate finish, forming a dense anti-rust layer that triples corrosion resistance and significantly extends bit longevity. Universal Compatibility: Featuring a 5/16″ hex shank, our bits are designed for a secure, slip-free connection with most mainstream manual and electric impact drivers (such as TEKTON and CRAFTSMAN), ensuring efficient power transfer and reduced cam-out risk. Versatile Application: Whether you're disassembling a rusted motorcycle engine, maintaining a car chassis, or handling heavy industrial tasks, our JIS Impact Bits deliver the precision, power, and durability that professionals need for even the most extreme challenges.