1.Please note: This product is only sold in the 'JiMiao Direct' store. 2.SDS-MAX Shank: This SDS-MAX ground rod driver is specifically designed for SDS MAX rotary hammers, so it's compatible with all brands of SDS-MAX hammer drills. BUT NOT compatible with tools that accept SDS or SDS Plus, please confirm whether this grounding rod driver attachment is suitable for your tools before purchasing 3.Superb Material: This SDS-MAX hammer driver attachment is made of forged steel with thick walls and can withstand strong impact. With a one-piece molding process, the SDS Max T post driver is rust/corrosion resistant, reliable, and provides a long life 4.For Various Needs: This fence post hammer driver is not only for standard steel T fence posts but also ideal for driving grounding rods and rebar stakes, suitable for working on various occasions 5.Save Your Energe&Time: The SDS Max T-post driver is 200mm/7.87 inches in length with 65mm/2.56 inches inner diameter and 50mm/1.97 inches in hole depth. So it can provide a comfortable grip for driving posts and rods on demanding job sites. A nice alternative for replacing the hand hammer to save more time and energy