Opall 19 mm Harmonic Balancer Socket Use for 19mm Hex Pulley Damper Bolt for Honda Made of High Standard Quality : Our 19 mm Harmonic Balancer Socket was made of GB 40CR Alloy Steel, which is a high quality Quenched and Tempered Alloy Structural Steel. This GB 40CR Alloy Steel construction to meet your expectation. Perfect Design with Harmonic Balancer Socket: Designed with more than three times the standard socket mass to direct more energy to removing the bolt. Inside hexagonal socket design, anti-skid and impact-resistant. Easy Installation to 19mm Hex Pulley Damper Bolt: Perfect to install to your 19mm Hex Pulley Damper Bolt with our 19 mm Harmonic Balancer Socket, easy to install and remove. Great Compatibility : It can be used on Honda engines that use a 19mm hex pulley damper bolt or other 19mm applications. For use with 1/2" drive. 100% SATISFACTION GUARANTEE & 18 MONTHS WARRANTY - At Opall our goal is to give our customers the best products and services. If you're not 100% satisfied with our products, simply return it for a full refund in 30 days, no questions asked money back guarantee. Premium Support & 18 Months' Warranty.