Having trouble splitting rocks? Do you want a more efficient tool for help? Try this Rock Splitter, you will love it! Specifications Material: Chromium Vanadium Alloy Steel Diameter Options: 16mm, 18mm Product Length: 105mm Hole Depth: 50mm Product Weight: 128g (16mm), 146g (18mm) Package Includes: 5x Rock Stone Splitters Main Features Make it easier to split rocks, granite, marbles,concrete,etc. Durable Material High-quality steel, heat treatment process, high hardnessandtoughness.Shims are made of high-hardness steel, heat-treated process to enhance toughness. Multiple Uses Using this tools to split the stoneby hand, suitable for splitting hard stone, rock, granite, marble, concrete, basalt, sandstone, gneiss, limestone, shale, conglomerate. Optional Diameters There are two options of diameter: 16mm and 18mm. 16mm Rock splitter should be used with holes of 16mm diameter and 50mm depth; 18mm Rock splitter should be used with holes of 18mm diameter and 50mm depth. How To Use 1.Drill holes with quarrying dedicated drill, remove residual powder of hole; 2.Put stone splitter into the holes; 3.Hit the rock splitter with a hammer until the stone cracks. Attention Please make the necessary protective measures before use; when the stone is about to split, keep alert. Note *Due to manual measurements, please allow slight measurement deviations. *Due to the different display and lighting effects, the actual color of the item may be slightly different from the color displayed on the picture.