1/2" Impact Bit Holder Socket Designed with mechanics in mind, this socket works quickly and efficiently in the tight space around oxygen sensors. The 6-point beveled nose design securely grips oxygen sensor fasteners, preventing damage to the sensor. A side cutout allows you to easily slip the socket onto the sensor, preventing damage to wires. High grade chrome-molybdenum steel Specially designed for all standard power tools AOK special heat treatment techniques ensure higher torque capacity and longer durabilityManganese-phosphated finish Radius corner design avoids stripping off the fasteners. Made in the TAIWAN, Coated with Black Phosphate- a rust-preventative compound that makes them resistant to corrosion and use high performance alloy steel with state of the art heat treating process precision quench and temper. Specifications ModelSize A04B-02H1/4" Q & A Q. What is an impact socket? A. Impact sockets are designed for use with powered impact wrenches or drivers. Impact wrenches can be powered pneumatically, electrically, or hydraulically. The combination of an impact wrench and impact socket can deliver greater torque to the head of a fastener than can be achieved with a manual wrench. Q. What's your main Impact Sockets? A. Lntool Industrial Co., Ltd., is a leading manufacturer of Impact Sockets in Taiwan. Our sockets have many different types, such as bit holders, extension bars, unversal joints, star and hex bits, adaptors and other accessories. Q. Is the quality of Impact Socketss reliable. A. We only use high grade quality material with longer lifetime. The Longer lifetime, the longer business sustained.Air Impact Accessories CR-V pricelist website:http://www.twlntoolpro.com/air-impact-accessories-cr-v/