SDS-Max Ground Rod Driver, 1905mmFeatures: Function: driving common ground rods for electrical circuits into the soil, bottom drill deepFor use in grounding and lightning systemsCompatible with SDS-Max system rotary hammers and hammer drillsSpecifications: Shank type: SDS-MaxLength: 250mmDriver outer diameter: 30mmInner (rod) diameter: 1905mmDepth: 75mm