Pneumatic Backfill Tamper, 5.75" Round Malleable Butt, 4" Stroke, 1-5/8" Bore. With dual-action sand wipers, a built-in muffler and a side exhaust, this tool is built for heavy use. These tools are commonly used by municipal and utility crews for compacting around both utility line repairs and new installations such as street lights, fire hydrants, and telephone poles prior to pouring concrete. In addition, this proven tool is ideal for back-filling around foundations or other tight areas. Durability: With a plated piston and front-end seal to protect your tool, this Backfill Tamper can be used in the toughest environments. The sand-wiper seal prevents dirt and grit from getting inside the tool. Reliability: Thanks to a built-in lubricator, these tools are built to run smoothly and last, while extending overall operating life. Comes with a 1-year warranty. Power: Thanks to its high-power output, you’ll be able to breeze through any job. Access: This tool is as lightweight as it is powerful making compact  spaces  easy to reach