Makita 751109-A 3/4" X 2-3/4" X 10" Ground Rod Driver, Spline Or 3/4" Hex - 21/32"Makita 751109 A Key Features APPLICATIONS : For driving rods into the ground without the use of a heavy sledge hammer DESIGN : For use with Spline or 3 4" hex 21 32" shank hammers VERSATILITY : 10" long and fits ground rods up to 3 4" diameter DURABILITY : Durable metal construction for long life INCLUDES : 3 4" x 2 3 4" x 10" Ground Rod Driver, Spline or 3 4" hex 21 32" Features For driving rods into the ground without the use of a heavy sledge