GRUNDOMAT 55 P Underground Piercing Tool The GRUNDOMAT 55 P is a 2 in. pneumatic boring missile designed for trenchless installation of small pipes, cables, conduit, and utility lines. Powered by compressed air, this cylindrical air-hammer drives through the ground to create a clean underground bore without open-cut trenching. This missile bore solution is ideal for crossings under sidewalks, driveways, landscaped areas, roadways, and other surface structures where reducing disruption is important. As a pneumatic mole, the GRUNDOMAT 55 P is suitable for displaceable soils such as sand, loam, and gravel, including soil conditions with fracturable rocks. This boring mole is not designed for solid rock or unfracturable rocks, and very soft soils may affect accuracy because the tool’s own weight can cause it to deviate. Specifications Model GRUNDOMAT 55 P Tool Diameter 2 in. / 55 mm Length 43 in. Weight 32 lbs Air Consumption 18 CFM Strokes Per Minute 480 Basic Package Part # 07076920 Deluxe Package Part # 07060420 Package Includes GRUNDOMAT Boring Tool 50 ft. Air Supply Hose In-line Lubricator Assembly 1 Gallon Grundo-Oil Tool Lubricant Magnetic Starting Level Operators & Parts Manual The GRUNDOMAT 55 P is a compact and reliable underground piercing tool for contractors who need dependable small-diameter boring performance, easy handling, and reduced surface damage on utility installation jobs.