[Compatibility] This SDS plus ground rod driver is compatible with a wide range of SDS Plus hammer drills. (Not compatible with tools that accept SDS or SDS Max.) [ Steel Material] This ground rod driver is made of steel, which has thick metal wall and withstand greater impact without damage. It is an extra heavy duty one-piece tool, rust-proof and to use. [Save Time Tool] With this tool, you do not need to use a sledgehammer and planks to install ground rods, small fence posts, small electric fence posts and more. This ground rod driver is almost a necessity for your safety and your time. [Easy and Quick] Heavy duty, high efficiency, precise and effortless, for commercial and industrial applications. This item measures: 3.35inch (8.5cm) long, 1.38inch (3.5cm) diameter. [Wide Application] The ground rod driver is suitable for standard steel T-post, shallow steel single posts used for small signs or to support electrical outlets. It is also for driving ground rods and rebar piles. Note:There may be scratches on the metal , which does not affect use. Colour:Silver-Gray Material:Metal Package Contents: 2 x Ground Rod Driver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.