CTA Tools 2717 Toyota Belt Tensioner Socket is designed with a special configuration with 6 internal slots that service 2000 and up Toyotas. Use with 1/2-Inch square or 7/8-Inch hex drive tools. Heavy-duty construction allows for strength and durability. Whether tuning up your ‘68 Corvette or changing the oil on a John Deere tractor, CTA can supply you with the tools needed to do the job. California Prop 65 - Warning, This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.CTA Tools 2717 Toyota Belt Tensioner Socket