Material and construction - Made of high-quality steel with a heat treatment process for high hardness and good toughness; durable for long-term use. Function and compatibility - Multifunctional quarry stone expansion tool stone splitter suitable for splitting hard stone, stone, granite, and concrete. Size - Diameter: approx 16 mm - Length: approx 105 mm How to use - Step 1: Use the special holes to remove any remaining powder in the bore. - Step 2: Flip the large sides of the two wedges upside down and insert them into the bore. - Step 3: Flip the small side of the center wedge between the two wedges upside down, then place and strike with a hammer to divide the stone. Use scenarios - In a quarry or stone yard, splitting blocks into smaller pieces for transport or further processing. - On construction sites or in workshops, splitting granite slabs or concrete blocks into required sizes. - For home DIY, creating garden edging, pavers, or stepping stones by dividing larger stones into manageable pieces.