*The overall length is 6" (150mm) with 8mm cross holes for turning, providing the clearance needed for a correct connection and easy loosening - meaning you won't damage the nuts or your hands in the process. *This Heavy-Duty hot water heater element wrench combine with anode rod removal tool easy to use features A3 Carbon Steel Galvanized Construction for Corrosion Resistant, and Zinc plated for durability enables easy removal of the most major screw-in water heater elements and anode rod size 3/4" NPT. *One end size 1-1/2" hex, fits most residential screw-in water heater elements. *One end size 1-1/16" hex, fits all 3/4" thread anode rods. *Servicing anode and element on your water heater is a must if you want to protect your tank and keep it at its best for years to come, this tube spanner is just the thing to remove or re-tighten the anode rod thanks to its perfect sizing., Manufacturer: FiTspi