Hitachi 728972 1-3/8 Inch x 36 Inch x 31 Inch SDS MAX 4 Cutter Zentro Drill Bit
Amazon.com: Werhoo SDS MAX Ground Rod Driver Compatible with Hilti/DeWalt/Bosch/Hitachi/Makita/Milwaukee SDS MAX Hammer Drills for 2inch Grounding Rods (NOT Work with SDS Plus Hammer Drill) : Tools & Home Improvement