-Usable on all types of round ground rods: copper-bonded, galvanized, and stainless steel -Inserts are interchangeable with standard ground rod driver body -The driver will not deform the end of the rod, making connection of the ground conductor quick and easyPart Number EGRD58 Ground Rod Diameter, Nominal 5/8" Max Ground Rod Diameter, Actual (Ø) 0.56" Max Length (L) 5' Unit Weight 23 lb Certifications Qualifoudre Standard Packaging Quantity 1 pc UPC 78285635448 EAN-13 8711893017533