Attributes:* Inner Diameter 3mm* Punch Die Size: 83mmx8mm( L*Dia)* Bottom Die Size: 7mmx21mm( L*Dia)What Is Included:* 1 Piece x Grommet Punch ToolApplications & Features:--- The leather stitching punch is suitable for punching for leather belts, watchband, Leather straps, thin rubber, plastic sheets, Canvas, clothing, paper, etc.--- This grommet punch with a comfortable handle is easy to use and carry. --- This punching tool is made of 45# steel, with outstanding hardness and exceptional durability for long-lasting performance.Useful Tips:--- Please confirm the punch size before buying.